11957579393169 has 32 divisors (see below), whose sum is σ = 17240309412480. Its totient is φ = 7346270080512.

The previous prime is 11957579393069. The next prime is 11957579393233. The reversal of 11957579393169 is 96139397575911.

It is not a de Polignac number, because 11957579393169 - 2⁷ = 11957579393041 is a prime.

It is a super-2 number, since 2×11957579393169² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11957579393169.

It is not an unprimeable number, because it can be changed into a prime (11957579393069) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8085157 + ... + 9449069.

It is an arithmetic number, because the mean of its divisors is an integer number (538759669140).

Almost surely, 2^{11957579393169} is an apocalyptic number.

11957579393169 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

11957579393169 is a deficient number, since it is larger than the sum of its proper divisors (5282730019311).

11957579393169 is a wasteful number, since it uses less digits than its factorization.

11957579393169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1368129.

The product of its digits is 434010150, while the sum is 75.

The spelling of 11957579393169 in words is "eleven trillion, nine hundred fifty-seven billion, five hundred seventy-nine million, three hundred ninety-three thousand, one hundred sixty-nine".