13017494640 has 40 divisors (see below), whose sum is σ = 40354234128. Its totient is φ = 3471331840.

The previous prime is 13017494639. The next prime is 13017494701. The reversal of 13017494640 is 4649471031.

13017494640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27119541 + ... + 27120020.

Almost surely, 2^13017494640 is an apocalyptic number.

13017494640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13017494640 is an abundant number, since it is smaller than the sum of its proper divisors (27336739488).

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

13017494640 is a wasteful number, since it uses less digits than its factorization.

13017494640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54239577 (or 54239571 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The spelling of 13017494640 in words is "thirteen billion, seventeen million, four hundred ninety-four thousand, six hundred forty".