13491334680 has 64 divisors (see below), whose sum is σ = 40852304640. Its totient is φ = 3564062592.

The previous prime is 13491334643. The next prime is 13491334709. The reversal of 13491334680 is 8643319431.

It is a super-2 number, since 2×13491334680² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 512524 + ... + 538203.

It is an arithmetic number, because the mean of its divisors is an integer number (638317260).

Almost surely, 2^13491334680 is an apocalyptic number.

13491334680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13491334680 is an abundant number, since it is smaller than the sum of its proper divisors (27360969960).

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

13491334680 is a wasteful number, since it uses less digits than its factorization.

13491334680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050848 (or 1050844 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 42.

The spelling of 13491334680 in words is "thirteen billion, four hundred ninety-one million, three hundred thirty-four thousand, six hundred eighty".