13256374032 has 160 divisors (see below), whose sum is σ = 41671618560. Its totient is φ = 4001431680.

The previous prime is 13256373979. The next prime is 13256374049. The reversal of 13256374032 is 23047365231.

13256374032 is a `hidden beast` number, since 1 + 3 + 256 + 374 + 0 + 32 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1244473 + ... + 1255079.

It is an arithmetic number, because the mean of its divisors is an integer number (260447616).

Almost surely, 2^13256374032 is an apocalyptic number.

13256374032 is a gapful number since it is divisible by the number (12) 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 13256374032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20835809280).

13256374032 is an abundant number, since it is smaller than the sum of its proper divisors (28415244528).

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

13256374032 is a wasteful number, since it uses less digits than its factorization.

13256374032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10898 (or 10886 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 36.

The spelling of 13256374032 in words is "thirteen billion, two hundred fifty-six million, three hundred seventy-four thousand, thirty-two".