78928285404 has 12 divisors (see below), whose sum is σ = 184165999304. Its totient is φ = 26309428464.

The previous prime is 78928285379. The next prime is 78928285417. The reversal of 78928285404 is 40458282987.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3288678547 + ... + 3288678570.

Almost surely, 2^78928285404 is an apocalyptic number.

It is an amenable number.

78928285404 is an abundant number, since it is smaller than the sum of its proper divisors (105237713900).

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

78928285404 is a wasteful number, since it uses less digits than its factorization.

78928285404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6577357124 (or 6577357122 counting only the distinct ones).

The product of its (nonzero) digits is 10321920, while the sum is 57.

The spelling of 78928285404 in words is "seventy-eight billion, nine hundred twenty-eight million, two hundred eighty-five thousand, four hundred four".