13277568957 has 16 divisors (see below), whose sum is σ = 18306682560. Its totient is φ = 8555069952.

The previous prime is 13277568943. The next prime is 13277569001. The reversal of 13277568957 is 75986577231.

It is a happy number.

It is not a de Polignac number, because 13277568957 - 2¹⁸ = 13277306813 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13277568957.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13277568257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 612532 + ... + 633837.

It is an arithmetic number, because the mean of its divisors is an integer number (1144167660).

Almost surely, 2^13277568957 is an apocalyptic number.

It is an amenable number.

13277568957 is a deficient number, since it is larger than the sum of its proper divisors (5029113603).

13277568957 is a wasteful number, since it uses less digits than its factorization.

13277568957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1246492.

The product of its digits is 22226400, while the sum is 60.

The spelling of 13277568957 in words is "thirteen billion, two hundred seventy-seven million, five hundred sixty-eight thousand, nine hundred fifty-seven".