79213421028 has 48 divisors (see below), whose sum is σ = 213909678080. Its totient is φ = 22345917984.

The previous prime is 79213421003. The next prime is 79213421029. The reversal of 79213421028 is 82012431297.

It is not an unprimeable number, because it can be changed into a prime (79213421029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5961826 + ... + 5975097.

Almost surely, 2^79213421028 is an apocalyptic number.

It is an amenable number.

79213421028 is an abundant number, since it is smaller than the sum of its proper divisors (134696257052).

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

79213421028 is a wasteful number, since it uses less digits than its factorization.

79213421028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11937016 (or 11937014 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The spelling of 79213421028 in words is "seventy-nine billion, two hundred thirteen million, four hundred twenty-one thousand, twenty-eight".