13931589518 has 16 divisors (see below), whose sum is σ = 26053881984. Its totient is φ = 5427891960.

The previous prime is 13931589499. The next prime is 13931589521. The reversal of 13931589518 is 81598513931.

It is a self number, because there is not a number n which added to its sum of digits gives 13931589518.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45232280 + ... + 45232587.

It is an arithmetic number, because the mean of its divisors is an integer number (1628367624).

Almost surely, 2^13931589518 is an apocalyptic number.

13931589518 is a deficient number, since it is larger than the sum of its proper divisors (12122292466).

13931589518 is a wasteful number, since it uses less digits than its factorization.

13931589518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90464887.

The product of its digits is 1166400, while the sum is 53.

The spelling of 13931589518 in words is "thirteen billion, nine hundred thirty-one million, five hundred eighty-nine thousand, five hundred eighteen".