13986908664 has 32 divisors (see below), whose sum is σ = 34994688000. Its totient is φ = 4658647392.

The previous prime is 13986908599. The next prime is 13986908669. The reversal of 13986908664 is 46680968931.

It is a super-2 number, since 2×13986908664² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13986908598 and 13986908607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13986908669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197134 + ... + 258525.

It is an arithmetic number, because the mean of its divisors is an integer number (1093584000).

Almost surely, 2^13986908664 is an apocalyptic number.

It is an amenable number.

13986908664 is an abundant number, since it is smaller than the sum of its proper divisors (21007779336).

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

13986908664 is a wasteful number, since it uses less digits than its factorization.

13986908664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456947 (or 456943 counting only the distinct ones).

The product of its (nonzero) digits is 13436928, while the sum is 60.

The spelling of 13986908664 in words is "thirteen billion, nine hundred eighty-six million, nine hundred eight thousand, six hundred sixty-four".