11857331577 has 128 divisors (see below), whose sum is σ = 21725347840. Its totient is φ = 5576325120.

The previous prime is 11857331567. The next prime is 11857331609. The reversal of 11857331577 is 77513375811.

It is not a de Polignac number, because 11857331577 - 2⁷ = 11857331449 is a prime.

It is a super-3 number, since 3×11857331577³ (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (11857331557) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 5948493 + ... + 5950485.

It is an arithmetic number, because the mean of its divisors is an integer number (169729280).

Almost surely, 2^11857331577 is an apocalyptic number.

It is an amenable number.

11857331577 is a deficient number, since it is larger than the sum of its proper divisors (9868016263).

11857331577 is a wasteful number, since it uses less digits than its factorization.

11857331577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2103.

The product of its digits is 617400, while the sum is 48.

The spelling of 11857331577 in words is "eleven billion, eight hundred fifty-seven million, three hundred thirty-one thousand, five hundred seventy-seven".