13512881720 has 48 divisors (see below), whose sum is σ = 32922673560. Its totient is φ = 4989369216.

The previous prime is 13512881677. The next prime is 13512881743. The reversal of 13512881720 is 2718821531.

13512881720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 992714 + ... + 1006233.

Almost surely, 2^13512881720 is an apocalyptic number.

13512881720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13512881720 is an abundant number, since it is smaller than the sum of its proper divisors (19409791840).

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

13512881720 is a wasteful number, since it uses less digits than its factorization.

13512881720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1998984 (or 1998967 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 38.

The spelling of 13512881720 in words is "thirteen billion, five hundred twelve million, eight hundred eighty-one thousand, seven hundred twenty".