12423653568 has 84 divisors (see below), whose sum is σ = 36438375688. Its totient is φ = 4044902400.

The previous prime is 12423653551. The next prime is 12423653579. The reversal of 12423653568 is 86535632421.

12423653568 is a `hidden beast` number, since 1 + 2 + 4 + 2 + 36 + 53 + 568 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 226033 + ... + 275568.

Almost surely, 2^12423653568 is an apocalyptic number.

12423653568 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12423653568 is an abundant number, since it is smaller than the sum of its proper divisors (24014722120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12423653568 is a wasteful number, since it uses less digits than its factorization.

12423653568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501662 (or 501649 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 45.

The spelling of 12423653568 in words is "twelve billion, four hundred twenty-three million, six hundred fifty-three thousand, five hundred sixty-eight".