23438980879 has 4 divisors (see below), whose sum is σ = 23441948640. Its totient is φ = 23436013120.

The previous prime is 23438980871. The next prime is 23438980933. The reversal of 23438980879 is 97808983432.

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 23438980879 - 2³ = 23438980871 is a prime.

It is a super-2 number, since 2×23438980879² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23438980871) 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, 1472002 + ... + 1487839.

It is an arithmetic number, because the mean of its divisors is an integer number (5860487160).

Almost surely, 2^23438980879 is an apocalyptic number.

23438980879 is a deficient number, since it is larger than the sum of its proper divisors (2967761).

23438980879 is an equidigital number, since it uses as much as digits as its factorization.

23438980879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2967760.

The product of its (nonzero) digits is 20901888, while the sum is 61.

The spelling of 23438980879 in words is "twenty-three billion, four hundred thirty-eight million, nine hundred eighty thousand, eight hundred seventy-nine".