13986858636 has 72 divisors (see below), whose sum is σ = 35818342560. Its totient is φ = 4601608704.

The previous prime is 13986858623. The next prime is 13986858671. The reversal of 13986858636 is 63685868931.

13986858636 is a `hidden beast` number, since 13 + 9 + 8 + 6 + 8 + 586 + 36 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1025236 + ... + 1038788.

It is an arithmetic number, because the mean of its divisors is an integer number (497476980).

Almost surely, 2^13986858636 is an apocalyptic number.

It is an amenable number.

13986858636 is an abundant number, since it is smaller than the sum of its proper divisors (21831483924).

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

13986858636 is a wasteful number, since it uses less digits than its factorization.

13986858636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13935 (or 13930 counting only the distinct ones).

The product of its digits is 44789760, while the sum is 63.

The spelling of 13986858636 in words is "thirteen billion, nine hundred eighty-six million, eight hundred fifty-eight thousand, six hundred thirty-six".