23907478812 has 96 divisors (see below), whose sum is σ = 66077975040. Its totient is φ = 6585027840.

The previous prime is 23907478789. The next prime is 23907478843. The reversal of 23907478812 is 21887470932.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 303487 + ... + 374057.

It is an arithmetic number, because the mean of its divisors is an integer number (688312240).

Almost surely, 2^23907478812 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23907478812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33038987520).

23907478812 is an abundant number, since it is smaller than the sum of its proper divisors (42170496228).

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

23907478812 is a wasteful number, since it uses less digits than its factorization.

23907478812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70731 (or 70729 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 51.

The spelling of 23907478812 in words is "twenty-three billion, nine hundred seven million, four hundred seventy-eight thousand, eight hundred twelve".