79286428578 has 32 divisors (see below), whose sum is σ = 181773665280. Its totient is φ = 22584822480.

The previous prime is 79286428547. The next prime is 79286428597. The reversal of 79286428578 is 87582468297.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2837718 + ... + 2865521.

It is an arithmetic number, because the mean of its divisors is an integer number (5680427040).

Almost surely, 2^79286428578 is an apocalyptic number.

79286428578 is an abundant number, since it is smaller than the sum of its proper divisors (102487236702).

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

79286428578 is a wasteful number, since it uses less digits than its factorization.

79286428578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5703582.

The product of its digits is 108380160, while the sum is 66.

The spelling of 79286428578 in words is "seventy-nine billion, two hundred eighty-six million, four hundred twenty-eight thousand, five hundred seventy-eight".