13294910640 has 80 divisors (see below), whose sum is σ = 44960979456. Its totient is φ = 3223008000.

The previous prime is 13294910627. The next prime is 13294910669. The reversal of 13294910640 is 4601949231.

It is a tau number, because it is divible by the number of its divisors (80).

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, 2515336 + ... + 2520615.

Almost surely, 2^13294910640 is an apocalyptic number.

13294910640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13294910640 is an abundant number, since it is smaller than the sum of its proper divisors (31666068816).

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

13294910640 is a wasteful number, since it uses less digits than its factorization.

13294910640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5035978 (or 5035972 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 39.

The spelling of 13294910640 in words is "thirteen billion, two hundred ninety-four million, nine hundred ten thousand, six hundred forty".