13087889376 has 24 divisors (see below), whose sum is σ = 34355709864. Its totient is φ = 4362629760.

The previous prime is 13087889327. The next prime is 13087889407. The reversal of 13087889376 is 67398878031.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent 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, 68165995 + ... + 68166186.

It is an arithmetic number, because the mean of its divisors is an integer number (1431487911).

Almost surely, 2^13087889376 is an apocalyptic number.

13087889376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13087889376 is an abundant number, since it is smaller than the sum of its proper divisors (21267820488).

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

13087889376 is a wasteful number, since it uses less digits than its factorization.

13087889376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136332194 (or 136332186 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 60.

The spelling of 13087889376 in words is "thirteen billion, eighty-seven million, eight hundred eighty-nine thousand, three hundred seventy-six".