11727555257 has 16 divisors (see below), whose sum is σ = 13022933760. Its totient is φ = 10470728400.

The previous prime is 11727555227. The next prime is 11727555271. The reversal of 11727555257 is 75255572711.

It is not a de Polignac number, because 11727555257 - 2¹⁰ = 11727554233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11727555227) 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, 720782 + ... + 736872.

It is an arithmetic number, because the mean of its divisors is an integer number (813933360).

Almost surely, 2^11727555257 is an apocalyptic number.

It is an amenable number.

11727555257 is a deficient number, since it is larger than the sum of its proper divisors (1295378503).

11727555257 is a wasteful number, since it uses less digits than its factorization.

11727555257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17284.

The product of its digits is 857500, while the sum is 47.

The spelling of 11727555257 in words is "eleven billion, seven hundred twenty-seven million, five hundred fifty-five thousand, two hundred fifty-seven".