11957279369 has 8 divisors (see below), whose sum is σ = 13734134400. Its totient is φ = 10197592416.

The previous prime is 11957279351. The next prime is 11957279371. The reversal of 11957279369 is 96397275911.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11957279369 - 2¹⁶ = 11957213833 is a prime.

It is a super-2 number, since 2×11957279369² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11957279569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4290524 + ... + 4293309.

It is an arithmetic number, because the mean of its divisors is an integer number (1716766800).

Almost surely, 2^11957279369 is an apocalyptic number.

It is an amenable number.

11957279369 is a deficient number, since it is larger than the sum of its proper divisors (1776855031).

11957279369 is an equidigital number, since it uses as much as digits as its factorization.

11957279369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8584039.

The product of its digits is 6429780, while the sum is 59.

The spelling of 11957279369 in words is "eleven billion, nine hundred fifty-seven million, two hundred seventy-nine thousand, three hundred sixty-nine".