13921258708 has 12 divisors (see below), whose sum is σ = 27842517472. Its totient is φ = 5966253720.

The previous prime is 13921258697. The next prime is 13921258717. The reversal of 13921258708 is 80785212931.

It is a happy number.

13921258708 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248593878 + ... + 248593933.

Almost surely, 2^13921258708 is an apocalyptic number.

It is an amenable number.

13921258708 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13921258708 is a wasteful number, since it uses less digits than its factorization.

13921258708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497187822 (or 497187820 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 46.

The spelling of 13921258708 in words is "thirteen billion, nine hundred twenty-one million, two hundred fifty-eight thousand, seven hundred eight".