2311688564979 has 4 divisors (see below), whose sum is σ = 3082251419976. Its totient is φ = 1541125709984.

The previous prime is 2311688564957. The next prime is 2311688564987. The reversal of 2311688564979 is 9794658861132.

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 2311688564979 - 2²⁰ = 2311687516403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2311688564279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 385281427494 + ... + 385281427499.

It is an arithmetic number, because the mean of its divisors is an integer number (770562854994).

Almost surely, 2^{2311688564979} is an apocalyptic number.

2311688564979 is a deficient number, since it is larger than the sum of its proper divisors (770562854997).

2311688564979 is an equidigital number, since it uses as much as digits as its factorization.

2311688564979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770562854996.

The product of its digits is 156764160, while the sum is 69.

The spelling of 2311688564979 in words is "two trillion, three hundred eleven billion, six hundred eighty-eight million, five hundred sixty-four thousand, nine hundred seventy-nine".