78923700152 has 32 divisors (see below), whose sum is σ = 168453751680. Its totient is φ = 34314651360.

The previous prime is 78923700133. The next prime is 78923700173. The reversal of 78923700152 is 25100732987.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19494938 + ... + 19498985.

It is an arithmetic number, because the mean of its divisors is an integer number (5264179740).

Almost surely, 2^78923700152 is an apocalyptic number.

It is an amenable number.

78923700152 is an abundant number, since it is smaller than the sum of its proper divisors (89530051528).

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

78923700152 is a wasteful number, since it uses less digits than its factorization.

78923700152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38993963 (or 38993959 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 44.

The spelling of 78923700152 in words is "seventy-eight billion, nine hundred twenty-three million, seven hundred thousand, one hundred fifty-two".