11877391297 has 4 divisors (see below), whose sum is σ = 11916080176. Its totient is φ = 11838702420.

The previous prime is 11877391277. The next prime is 11877391307. The reversal of 11877391297 is 79219377811.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11877391297 - 2²⁷ = 11743173569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11877391237) 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, 19343979 + ... + 19344592.

It is an arithmetic number, because the mean of its divisors is an integer number (2979020044).

Almost surely, 2^11877391297 is an apocalyptic number.

It is an amenable number.

11877391297 is a deficient number, since it is larger than the sum of its proper divisors (38688879).

11877391297 is an equidigital number, since it uses as much as digits as its factorization.

11877391297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38688878.

The product of its digits is 1333584, while the sum is 55.

The spelling of 11877391297 in words is "eleven billion, eight hundred seventy-seven million, three hundred ninety-one thousand, two hundred ninety-seven".