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12808877496 = 2334330740429
BaseRepresentation
bin10111110110111011…
…11111010110111000
31020001200011101200020
423323131333112320
5202213033034441
65515002410440
7632262443112
oct137335772670
936050141606
1012808877496
115483306278
122595800a20
13129190536c
148972183b2
154ee79ce66
hex2fb77f5b8

12808877496 has 64 divisors (see below), whose sum is σ = 32874441600. Its totient is φ = 4156645248.

The previous prime is 12808877489. The next prime is 12808877503. The reversal of 12808877496 is 69477880821.

It is an interprime number because it is at equal distance from previous prime (12808877489) and next prime (12808877503).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 296610 + ... + 337038.

It is an arithmetic number, because the mean of its divisors is an integer number (513663150).

Almost surely, 212808877496 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12808877496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16437220800).

12808877496 is an abundant number, since it is smaller than the sum of its proper divisors (20065564104).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12808877496 is a wasteful number, since it uses less digits than its factorization.

12808877496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40788 (or 40784 counting only the distinct ones).

The product of its (nonzero) digits is 10838016, while the sum is 60.

The spelling of 12808877496 in words is "twelve billion, eight hundred eight million, eight hundred seventy-seven thousand, four hundred ninety-six".

Divisors: 1 2 3 4 6 8 12 24 43 86 129 172 258 307 344 516 614 921 1032 1228 1842 2456 3684 7368 13201 26402 39603 40429 52804 79206 80858 105608 121287 158412 161716 242574 316824 323432 485148 970296 1738447 3476894 5215341 6953788 10430682 12411703 13907576 20861364 24823406 37235109 41722728 49646812 74470218 99293624 148940436 297880872 533703229 1067406458 1601109687 2134812916 3202219374 4269625832 6404438748 12808877496