23993672641 has 4 divisors (see below), whose sum is σ = 24551665072. Its totient is φ = 23435680212.

The previous prime is 23993672629. The next prime is 23993672699. The reversal of 23993672641 is 14627639932.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23993672641 - 2¹¹ = 23993670593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23993672441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 278996151 + ... + 278996236.

It is an arithmetic number, because the mean of its divisors is an integer number (6137916268).

Almost surely, 2^23993672641 is an apocalyptic number.

It is an amenable number.

23993672641 is a deficient number, since it is larger than the sum of its proper divisors (557992431).

23993672641 is an equidigital number, since it uses as much as digits as its factorization.

23993672641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557992430.

The product of its digits is 2939328, while the sum is 52.

The spelling of 23993672641 in words is "twenty-three billion, nine hundred ninety-three million, six hundred seventy-two thousand, six hundred forty-one".