23978866734 has 12 divisors (see below), whose sum is σ = 51954211296. Its totient is φ = 7992955572.

The previous prime is 23978866733. The next prime is 23978866739. The reversal of 23978866734 is 43766887932.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23978866733) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 666079614 + ... + 666079649.

It is an arithmetic number, because the mean of its divisors is an integer number (4329517608).

Almost surely, 2^23978866734 is an apocalyptic number.

23978866734 is an abundant number, since it is smaller than the sum of its proper divisors (27975344562).

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

23978866734 is a wasteful number, since it uses less digits than its factorization.

23978866734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332159271 (or 1332159268 counting only the distinct ones).

The product of its digits is 73156608, while the sum is 63.

The spelling of 23978866734 in words is "twenty-three billion, nine hundred seventy-eight million, eight hundred sixty-six thousand, seven hundred thirty-four".