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12811049873076 = 22371371373442991
BaseRepresentation
bin1011101001101100111000…
…0100111010111010110100
31200100201120002111120000110
42322123032010322322310
53134344012231414301
643125152015343020
72461365521125650
oct272331604727264
950321502446013
1012811049873076
11409a154740804
12152aa4a821a70
1371c0cca062a0
143240b56b7a60
151733a13540d6
hexba6ce13aeb4

12811049873076 has 192 divisors, whose sum is σ = 37408994574336. Its totient is φ = 3322212364800.

The previous prime is 12811049873059. The next prime is 12811049873099. The reversal of 12811049873076 is 67037894011821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 28697941 + ... + 29140931.

It is an arithmetic number, because the mean of its divisors is an integer number (194838513408).

Almost surely, 212811049873076 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 12811049873076, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18704497287168).

12811049873076 is an abundant number, since it is smaller than the sum of its proper divisors (24597944701260).

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

12811049873076 is a wasteful number, since it uses less digits than its factorization.

12811049873076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443462 (or 443460 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 57.

The spelling of 12811049873076 in words is "twelve trillion, eight hundred eleven billion, forty-nine million, eight hundred seventy-three thousand, seventy-six".