23978304812 has 24 divisors (see below), whose sum is σ = 52316302080. Its totient is φ = 9342196560.

The previous prime is 23978304811. The next prime is 23978304827. The reversal of 23978304812 is 21840387932.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (23978304811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38925512 + ... + 38926127.

It is an arithmetic number, because the mean of its divisors is an integer number (2179845920).

Almost surely, 2^23978304812 is an apocalyptic number.

23978304812 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

23978304812 is an abundant number, since it is smaller than the sum of its proper divisors (28337997268).

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

23978304812 is a wasteful number, since it uses less digits than its factorization.

23978304812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77851661 (or 77851659 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 47.

The spelling of 23978304812 in words is "twenty-three billion, nine hundred seventy-eight million, three hundred four thousand, eight hundred twelve".