23261356651 has 12 divisors (see below), whose sum is σ = 26438547072. Its totient is φ = 20341911024.

The previous prime is 23261356631. The next prime is 23261356667. The reversal of 23261356651 is 15665316232.

It is not a de Polignac number, because 23261356651 - 2⁵ = 23261356619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23261356621) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2473611 + ... + 2482996.

It is an arithmetic number, because the mean of its divisors is an integer number (2203212256).

Almost surely, 2^23261356651 is an apocalyptic number.

23261356651 is a deficient number, since it is larger than the sum of its proper divisors (3177190421).

23261356651 is a wasteful number, since it uses less digits than its factorization.

23261356651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4956658 (or 4956639 counting only the distinct ones).

The product of its digits is 194400, while the sum is 40.

The spelling of 23261356651 in words is "twenty-three billion, two hundred sixty-one million, three hundred fifty-six thousand, six hundred fifty-one".