23972822157 has 8 divisors (see below), whose sum is σ = 32124385600. Its totient is φ = 15901570080.

The previous prime is 23972822143. The next prime is 23972822171. The reversal of 23972822157 is 75122827932.

It is an interprime number because it is at equal distance from previous prime (23972822143) and next prime (23972822171).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23972822157 - 2⁴ = 23972822141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23972822117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20077144 + ... + 20078337.

It is an arithmetic number, because the mean of its divisors is an integer number (4015548200).

Almost surely, 2^23972822157 is an apocalyptic number.

It is an amenable number.

23972822157 is a deficient number, since it is larger than the sum of its proper divisors (8151563443).

23972822157 is a wasteful number, since it uses less digits than its factorization.

23972822157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40155683.

The product of its digits is 846720, while the sum is 48.

The spelling of 23972822157 in words is "twenty-three billion, nine hundred seventy-two million, eight hundred twenty-two thousand, one hundred fifty-seven".