13260691288857 has 16 divisors (see below), whose sum is σ = 18338574428352. Its totient is φ = 8516365819200.

The previous prime is 13260691288769. The next prime is 13260691288861. The reversal of 13260691288857 is 75888219606231.

It is not a de Polignac number, because 13260691288857 - 2⁸ = 13260691288601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13260691288877) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 591403083 + ... + 591425504.

It is an arithmetic number, because the mean of its divisors is an integer number (1146160901772).

Almost surely, 2^{13260691288857} is an apocalyptic number.

It is an amenable number.

13260691288857 is a deficient number, since it is larger than the sum of its proper divisors (5077883139495).

13260691288857 is a wasteful number, since it uses less digits than its factorization.

13260691288857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1182828728.

The product of its (nonzero) digits is 69672960, while the sum is 66.

The spelling of 13260691288857 in words is "thirteen trillion, two hundred sixty billion, six hundred ninety-one million, two hundred eighty-eight thousand, eight hundred fifty-seven".