22563978423 has 32 divisors (see below), whose sum is σ = 34996764672. Its totient is φ = 12664965600.

The previous prime is 22563978419. The next prime is 22563978439. The reversal of 22563978423 is 32487936522.

It is a happy number.

It is not a de Polignac number, because 22563978423 - 2² = 22563978419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22563978413) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 376140 + ... + 431982.

It is an arithmetic number, because the mean of its divisors is an integer number (1093648896).

Almost surely, 2^22563978423 is an apocalyptic number.

22563978423 is a deficient number, since it is larger than the sum of its proper divisors (12432786249).

22563978423 is a wasteful number, since it uses less digits than its factorization.

22563978423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56195.

The product of its digits is 4354560, while the sum is 51.

The spelling of 22563978423 in words is "twenty-two billion, five hundred sixty-three million, nine hundred seventy-eight thousand, four hundred twenty-three".