79135102128 has 80 divisors (see below), whose sum is σ = 211171993056. Its totient is φ = 25516984320.

The previous prime is 79135102063. The next prime is 79135102157. The reversal of 79135102128 is 82120153197.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178468 + ... + 436028.

Almost surely, 2^79135102128 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 79135102128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105585996528).

79135102128 is an abundant number, since it is smaller than the sum of its proper divisors (132036890928).

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

79135102128 is a wasteful number, since it uses less digits than its factorization.

79135102128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257782 (or 257776 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 39.

The spelling of 79135102128 in words is "seventy-nine billion, one hundred thirty-five million, one hundred two thousand, one hundred twenty-eight".