13431674568 has 128 divisors (see below), whose sum is σ = 39610166400. Its totient is φ = 3755544576.

The previous prime is 13431674567. The next prime is 13431674609. The reversal of 13431674568 is 86547613431.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (13431674561) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 110155 + ... + 197477.

It is an arithmetic number, because the mean of its divisors is an integer number (309454425).

Almost surely, 2^13431674568 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 13431674568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19805083200).

13431674568 is an abundant number, since it is smaller than the sum of its proper divisors (26178491832).

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

13431674568 is a wasteful number, since it uses less digits than its factorization.

13431674568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87391 (or 87387 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 48.

The spelling of 13431674568 in words is "thirteen billion, four hundred thirty-one million, six hundred seventy-four thousand, five hundred sixty-eight".