78926556832 has 48 divisors (see below), whose sum is σ = 160782670440. Its totient is φ = 38093504512.

The previous prime is 78926556823. The next prime is 78926556847. The reversal of 78926556832 is 23865562987.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 72880561296 + 6045995536 = 269964^2 + 77756^2 .

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, 5665908 + ... + 5679820.

Almost surely, 2^78926556832 is an apocalyptic number.

It is an amenable number.

78926556832 is an abundant number, since it is smaller than the sum of its proper divisors (81856113608).

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

78926556832 is a wasteful number, since it uses less digits than its factorization.

78926556832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20065 (or 20057 counting only the distinct ones).

The product of its digits is 43545600, while the sum is 61.

The spelling of 78926556832 in words is "seventy-eight billion, nine hundred twenty-six million, five hundred fifty-six thousand, eight hundred thirty-two".