13977687894 has 16 divisors (see below), whose sum is σ = 27983826432. Its totient is φ = 4654487528.

The previous prime is 13977687883. The next prime is 13977687907. The reversal of 13977687894 is 49878677931.

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, 1179054 + ... + 1190849.

It is an arithmetic number, because the mean of its divisors is an integer number (1748989152).

Almost surely, 2^13977687894 is an apocalyptic number.

13977687894 is an abundant number, since it is smaller than the sum of its proper divisors (14006138538).

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

13977687894 is a wasteful number, since it uses less digits than its factorization.

13977687894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2370891.

The product of its digits is 128024064, while the sum is 69.

The spelling of 13977687894 in words is "thirteen billion, nine hundred seventy-seven million, six hundred eighty-seven thousand, eight hundred ninety-four".