13739978518 has 32 divisors (see below), whose sum is σ = 23754233664. Its totient is φ = 5838669312.

The previous prime is 13739978513. The next prime is 13739978537. The reversal of 13739978518 is 81587993731.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13739978513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1824096 + ... + 1831612.

It is an arithmetic number, because the mean of its divisors is an integer number (742319802).

Almost surely, 2^13739978518 is an apocalyptic number.

13739978518 is a deficient number, since it is larger than the sum of its proper divisors (10014255146).

13739978518 is a wasteful number, since it uses less digits than its factorization.

13739978518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8616.

The product of its digits is 11430720, while the sum is 61.

The spelling of 13739978518 in words is "thirteen billion, seven hundred thirty-nine million, nine hundred seventy-eight thousand, five hundred eighteen".