11957579393167 has 4 divisors (see below), whose sum is σ = 11957609724696. Its totient is φ = 11957549061640.

The previous prime is 11957579393069. The next prime is 11957579393233. The reversal of 11957579393167 is 76139397575911.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11957579393167 - 2²³ = 11957571004559 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11957579393167.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11957579693167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14566528 + ... + 15365509.

It is an arithmetic number, because the mean of its divisors is an integer number (2989402431174).

Almost surely, 2^{11957579393167} is an apocalyptic number.

11957579393167 is a deficient number, since it is larger than the sum of its proper divisors (30331529).

11957579393167 is an equidigital number, since it uses as much as digits as its factorization.

11957579393167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30331528.

The product of its digits is 337563450, while the sum is 73.

The spelling of 11957579393167 in words is "eleven trillion, nine hundred fifty-seven billion, five hundred seventy-nine million, three hundred ninety-three thousand, one hundred sixty-seven".