23210009979 has 64 divisors (see below), whose sum is σ = 35069303808. Its totient is φ = 13559616000.

The previous prime is 23210009899. The next prime is 23210009989. The reversal of 23210009979 is 97990001232.

It is a happy number.

It is not a de Polignac number, because 23210009979 - 2⁹ = 23210009467 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23210009979.

It is not an unprimeable number, because it can be changed into a prime (23210009989) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10346632 + ... + 10348874.

It is an arithmetic number, because the mean of its divisors is an integer number (547957872).

Almost surely, 2^23210009979 is an apocalyptic number.

23210009979 is a deficient number, since it is larger than the sum of its proper divisors (11859293829).

23210009979 is a wasteful number, since it uses less digits than its factorization.

23210009979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2468.

The product of its (nonzero) digits is 61236, while the sum is 42.

The spelling of 23210009979 in words is "twenty-three billion, two hundred ten million, nine thousand, nine hundred seventy-nine".