12856923576 has 96 divisors (see below), whose sum is σ = 40003891200. Its totient is φ = 3654146880.

The previous prime is 12856923533. The next prime is 12856923619. The reversal of 12856923576 is 67532965821.

12856923576 is a `hidden beast` number, since 1 + 2 + 8 + 5 + 69 + 2 + 3 + 576 = 666.

It is an interprime number because it is at equal distance from previous prime (12856923533) and next prime (12856923619).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29485 + ... + 163043.

It is an arithmetic number, because the mean of its divisors is an integer number (416707200).

Almost surely, 2^12856923576 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 12856923576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20001945600).

12856923576 is an abundant number, since it is smaller than the sum of its proper divisors (27146967624).

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

12856923576 is a wasteful number, since it uses less digits than its factorization.

12856923576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133769 (or 133762 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 54.

The spelling of 12856923576 in words is "twelve billion, eight hundred fifty-six million, nine hundred twenty-three thousand, five hundred seventy-six".