23654331651 has 4 divisors (see below), whose sum is σ = 31539108872. Its totient is φ = 15769554432.

The previous prime is 23654331647. The next prime is 23654331683. The reversal of 23654331651 is 15613345632.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 23654331651 - 2² = 23654331647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23654331251) 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, 3942388606 + ... + 3942388611.

It is an arithmetic number, because the mean of its divisors is an integer number (7884777218).

Almost surely, 2^23654331651 is an apocalyptic number.

23654331651 is a deficient number, since it is larger than the sum of its proper divisors (7884777221).

23654331651 is an equidigital number, since it uses as much as digits as its factorization.

23654331651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7884777220.

The product of its digits is 194400, while the sum is 39.

The spelling of 23654331651 in words is "twenty-three billion, six hundred fifty-four million, three hundred thirty-one thousand, six hundred fifty-one".