13986068931 has 128 divisors (see below), whose sum is σ = 22953216000. Its totient is φ = 8394720768.

The previous prime is 13986068911. The next prime is 13986068933.

13986068931 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 13986068931 - 2⁶ = 13986068867 is a prime.

It is a super-2 number, since 2×13986068931² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13986068933) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 128312505 + ... + 128312613.

It is an arithmetic number, because the mean of its divisors is an integer number (179322000).

Almost surely, 2^13986068931 is an apocalyptic number.

13986068931 is a deficient number, since it is larger than the sum of its proper divisors (8967147069).

13986068931 is a wasteful number, since it uses less digits than its factorization.

13986068931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330 (or 324 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 54.

The spelling of 13986068931 in words is "thirteen billion, nine hundred eighty-six million, sixty-eight thousand, nine hundred thirty-one".