12856373292 has 48 divisors (see below), whose sum is σ = 34325303040. Its totient is φ = 3668788032.

The previous prime is 12856373291. The next prime is 12856373303. The reversal of 12856373292 is 29237365821.

12856373292 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12856373291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23067 + ... + 162002.

It is an arithmetic number, because the mean of its divisors is an integer number (715110480).

Almost surely, 2^12856373292 is an apocalyptic number.

12856373292 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12856373292 is an abundant number, since it is smaller than the sum of its proper divisors (21468929748).

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

12856373292 is a wasteful number, since it uses less digits than its factorization.

12856373292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185910 (or 185908 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 48.

The spelling of 12856373292 in words is "twelve billion, eight hundred fifty-six million, three hundred seventy-three thousand, two hundred ninety-two".