13374134856 has 256 divisors, whose sum is σ = 39875616000. Its totient is φ = 4197360384.

The previous prime is 13374134843. The next prime is 13374134861. The reversal of 13374134856 is 65843147331.

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, 21817206 + ... + 21817818.

It is an arithmetic number, because the mean of its divisors is an integer number (155764125).

Almost surely, 2^13374134856 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 13374134856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19937808000).

13374134856 is an abundant number, since it is smaller than the sum of its proper divisors (26501481144).

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

13374134856 is an equidigital number, since it uses as much as digits as its factorization.

13374134856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712 (or 690 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The spelling of 13374134856 in words is "thirteen billion, three hundred seventy-four million, one hundred thirty-four thousand, eight hundred fifty-six".