13637799020 has 12 divisors (see below), whose sum is σ = 28639377984. Its totient is φ = 5455119600.

The previous prime is 13637799011. The next prime is 13637799053. The reversal of 13637799020 is 2099773631.

It is a happy number.

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, 340944956 + ... + 340944995.

It is an arithmetic number, because the mean of its divisors is an integer number (2386614832).

Almost surely, 2^13637799020 is an apocalyptic number.

13637799020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13637799020 is an abundant number, since it is smaller than the sum of its proper divisors (15001578964).

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

13637799020 is a wasteful number, since it uses less digits than its factorization.

13637799020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681889960 (or 681889958 counting only the distinct ones).

The product of its (nonzero) digits is 428652, while the sum is 47.

The spelling of 13637799020 in words is "thirteen billion, six hundred thirty-seven million, seven hundred ninety-nine thousand, twenty".