23451564622 has 4 divisors (see below), whose sum is σ = 35177346936. Its totient is φ = 11725782310.

The previous prime is 23451564613. The next prime is 23451564629. The reversal of 23451564622 is 22646515432.

It is a happy number.

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

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23451564629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5862891154 + ... + 5862891157.

It is an arithmetic number, because the mean of its divisors is an integer number (8794336734).

Almost surely, 2^23451564622 is an apocalyptic number.

23451564622 is a deficient number, since it is larger than the sum of its proper divisors (11725782314).

23451564622 is a wasteful number, since it uses less digits than its factorization.

23451564622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11725782313.

The product of its digits is 345600, while the sum is 40.

The spelling of 23451564622 in words is "twenty-three billion, four hundred fifty-one million, five hundred sixty-four thousand, six hundred twenty-two".