13897863744 has 56 divisors (see below), whose sum is σ = 36787701888. Its totient is φ = 4630571520.

The previous prime is 13897863737. The next prime is 13897863761. The reversal of 13897863744 is 44736879831.

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, 455034 + ... + 484614.

It is an arithmetic number, because the mean of its divisors is an integer number (656923248).

Almost surely, 2^13897863744 is an apocalyptic number.

It is an amenable number.

13897863744 is an abundant number, since it is smaller than the sum of its proper divisors (22889838144).

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

13897863744 is a wasteful number, since it uses less digits than its factorization.

13897863744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32043 (or 32033 counting only the distinct ones).

The product of its digits is 24385536, while the sum is 60.

The spelling of 13897863744 in words is "thirteen billion, eight hundred ninety-seven million, eight hundred sixty-three thousand, seven hundred forty-four".