13881545896 has 16 divisors (see below), whose sum is σ = 26036370900. Its totient is φ = 6938513664.

The previous prime is 13881545837. The next prime is 13881545911. The reversal of 13881545896 is 69854518831.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12907232100 + 974313796 = 113610^2 + 31214^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13881545896.

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, 256155 + ... + 305578.

Almost surely, 2^13881545896 is an apocalyptic number.

It is an amenable number.

13881545896 is a deficient number, since it is larger than the sum of its proper divisors (12154825004).

13881545896 is a wasteful number, since it uses less digits than its factorization.

13881545896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564828 (or 564824 counting only the distinct ones).

The product of its digits is 8294400, while the sum is 58.

The spelling of 13881545896 in words is "thirteen billion, eight hundred eighty-one million, five hundred forty-five thousand, eight hundred ninety-six".