23491774979 has 8 divisors (see below), whose sum is σ = 23605308720. Its totient is φ = 23378400000.

The previous prime is 23491774927. The next prime is 23491774981. The reversal of 23491774979 is 97947719432.

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 23491774979 - 2²⁰ = 23490726403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23491774919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262487 + ... + 340415.

It is an arithmetic number, because the mean of its divisors is an integer number (2950663590).

Almost surely, 2^23491774979 is an apocalyptic number.

23491774979 is a deficient number, since it is larger than the sum of its proper divisors (113533741).

23491774979 is a wasteful number, since it uses less digits than its factorization.

23491774979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79381.

The product of its digits is 24004512, while the sum is 62.

The spelling of 23491774979 in words is "twenty-three billion, four hundred ninety-one million, seven hundred seventy-four thousand, nine hundred seventy-nine".