13890886696 has 16 divisors (see below), whose sum is σ = 26142239700. Its totient is φ = 6919622784.

The previous prime is 13890886673. The next prime is 13890886703. The reversal of 13890886696 is 69668809831.

It can be written as a sum of positive squares in 2 ways, for example, as 11943429796 + 1947456900 = 109286^2 + 44130^2 .

It is a super-2 number, since 2×13890886696² (a number of 21 digits) contains 22 as substring.

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, 3225285 + ... + 3229588.

Almost surely, 2^13890886696 is an apocalyptic number.

It is an amenable number.

13890886696 is a deficient number, since it is larger than the sum of its proper divisors (12251353004).

13890886696 is a wasteful number, since it uses less digits than its factorization.

13890886696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6455148 (or 6455144 counting only the distinct ones).

The product of its (nonzero) digits is 26873856, while the sum is 64.

The spelling of 13890886696 in words is "thirteen billion, eight hundred ninety million, eight hundred eighty-six thousand, six hundred ninety-six".