23593960721 has 4 divisors (see below), whose sum is σ = 23878225392. Its totient is φ = 23309696052.

The previous prime is 23593960669. The next prime is 23593960727. The reversal of 23593960721 is 12706939532.

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 a de Polignac number, because none of the positive numbers 2^k-23593960721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23593960727) 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, 142132211 + ... + 142132376.

It is an arithmetic number, because the mean of its divisors is an integer number (5969556348).

Almost surely, 2^23593960721 is an apocalyptic number.

It is an amenable number.

23593960721 is a deficient number, since it is larger than the sum of its proper divisors (284264671).

23593960721 is an equidigital number, since it uses as much as digits as its factorization.

23593960721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284264670.

The product of its (nonzero) digits is 612360, while the sum is 47.

The spelling of 23593960721 in words is "twenty-three billion, five hundred ninety-three million, nine hundred sixty thousand, seven hundred twenty-one".