13309577568 has 108 divisors (see below), whose sum is σ = 44028604620. Its totient is φ = 3802732416.

The previous prime is 13309577557. The next prime is 13309577573. The reversal of 13309577568 is 86577590331.

13309577568 is a `hidden beast` number, since 1 + 3 + 3 + 0 + 9 + 5 + 77 + 568 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 457458 + ... + 485681.

It is an arithmetic number, because the mean of its divisors is an integer number (407672265).

Almost surely, 2^13309577568 is an apocalyptic number.

13309577568 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13309577568 is an abundant number, since it is smaller than the sum of its proper divisors (30719027052).

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

13309577568 is a wasteful number, since it uses less digits than its factorization.

13309577568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943169 (or 943151 counting only the distinct ones).

The product of its (nonzero) digits is 4762800, while the sum is 54.

The spelling of 13309577568 in words is "thirteen billion, three hundred nine million, five hundred seventy-seven thousand, five hundred sixty-eight".