13539866720 has 48 divisors (see below), whose sum is σ = 32036724720. Its totient is φ = 5407686144.

The previous prime is 13539866653. The next prime is 13539866723. The reversal of 13539866720 is 2766893531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13539866723) 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, 41234 + ... + 169646.

It is an arithmetic number, because the mean of its divisors is an integer number (667431765).

Almost surely, 2^13539866720 is an apocalyptic number.

13539866720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13539866720 is an abundant number, since it is smaller than the sum of its proper divisors (18496858000).

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

13539866720 is a wasteful number, since it uses less digits than its factorization.

13539866720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129087 (or 129079 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 50.

The spelling of 13539866720 in words is "thirteen billion, five hundred thirty-nine million, eight hundred sixty-six thousand, seven hundred twenty".