13981859015 has 12 divisors (see below), whose sum is σ = 17823243576. Its totient is φ = 10527516288.

The previous prime is 13981859009. The next prime is 13981859027. The reversal of 13981859015 is 51095818931.

It is not a de Polignac number, because 13981859015 - 2¹⁰ = 13981857991 is a prime.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4836569 + ... + 4839458.

It is an arithmetic number, because the mean of its divisors is an integer number (1485270298).

Almost surely, 2^13981859015 is an apocalyptic number.

13981859015 is a deficient number, since it is larger than the sum of its proper divisors (3841384561).

13981859015 is an equidigital number, since it uses as much as digits as its factorization.

13981859015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9676066 (or 9676049 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 50.

The spelling of 13981859015 in words is "thirteen billion, nine hundred eighty-one million, eight hundred fifty-nine thousand, fifteen".