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11976007680 = 213335721317
BaseRepresentation
bin10110010011101001…
…10110000000000000
31010220121222020002000
423021310312000000
5144011324221210
65300211224000
7602530246200
oct131164660000
933817866060
1011976007680
11509616490a
1223a28a8000
13118b1b41a0
14818774400
154a15d1ac0
hex2c9d36000

11976007680 has 1344 divisors, whose sum is σ = 56478098880. Its totient is φ = 2378170368.

The previous prime is 11976007669. The next prime is 11976007691. The reversal of 11976007680 is 8670067911.

It is an interprime number because it is at equal distance from previous prime (11976007669) and next prime (11976007691).

It is a tau number, because it is divible by the number of its divisors (1344).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 704471032 + ... + 704471048.

It is an arithmetic number, because the mean of its divisors is an integer number (42022395).

Almost surely, 211976007680 is an apocalyptic number.

11976007680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11976007680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28239049440).

11976007680 is an abundant number, since it is smaller than the sum of its proper divisors (44502091200).

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

11976007680 is a wasteful number, since it uses less digits than its factorization.

11976007680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84 (or 47 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 45.

The spelling of 11976007680 in words is "eleven billion, nine hundred seventy-six million, seven thousand, six hundred eighty".