13931330814 has 12 divisors (see below), whose sum is σ = 30184550136. Its totient is φ = 4643776932.

The previous prime is 13931330813. The next prime is 13931330843. The reversal of 13931330814 is 41803313931.

13931330814 is a `hidden beast` number, since 1 + 39 + 313 + 308 + 1 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13931330813) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 386981394 + ... + 386981429.

It is an arithmetic number, because the mean of its divisors is an integer number (2515379178).

Almost surely, 2^13931330814 is an apocalyptic number.

13931330814 is an abundant number, since it is smaller than the sum of its proper divisors (16253219322).

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

13931330814 is a wasteful number, since it uses less digits than its factorization.

13931330814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773962831 (or 773962828 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The spelling of 13931330814 in words is "thirteen billion, nine hundred thirty-one million, three hundred thirty thousand, eight hundred fourteen".