78928100832 has 144 divisors (see below), whose sum is σ = 244408171392. Its totient is φ = 22233173760.

The previous prime is 78928100831. The next prime is 78928100863. The reversal of 78928100832 is 23800182987.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78928100831) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 215823 + ... + 452145.

It is an arithmetic number, because the mean of its divisors is an integer number (1697278968).

Almost surely, 2^78928100832 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 78928100832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122204085696).

78928100832 is an abundant number, since it is smaller than the sum of its proper divisors (165480070560).

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

78928100832 is a wasteful number, since it uses less digits than its factorization.

78928100832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236421 (or 236406 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 48.

The spelling of 78928100832 in words is "seventy-eight billion, nine hundred twenty-eight million, one hundred thousand, eight hundred thirty-two".