23372776621 has 8 divisors (see below), whose sum is σ = 24835720824. Its totient is φ = 21919618560.

The previous prime is 23372776613. The next prime is 23372776649. The reversal of 23372776621 is 12667727332.

It can be written as a sum of positive squares in 4 ways, for example, as 8646954121 + 14725822500 = 92989^2 + 121350^2 .

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

It is not a de Polignac number, because 23372776621 - 2³ = 23372776613 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 (23372776121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2441610 + ... + 2451163.

It is an arithmetic number, because the mean of its divisors is an integer number (3104465103).

Almost surely, 2^23372776621 is an apocalyptic number.

It is an amenable number.

23372776621 is a deficient number, since it is larger than the sum of its proper divisors (1462944203).

23372776621 is a wasteful number, since it uses less digits than its factorization.

23372776621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4893071.

The product of its digits is 889056, while the sum is 46.

The spelling of 23372776621 in words is "twenty-three billion, three hundred seventy-two million, seven hundred seventy-six thousand, six hundred twenty-one".