79308638332 has 144 divisors (see below), whose sum is σ = 182937180160. Its totient is φ = 29410128000.

The previous prime is 79308638287. The next prime is 79308638333. The reversal of 79308638332 is 23383680397.

It is a super-2 number, since 2×79308638332² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 79308638332.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79308638333) 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 47 ways as a sum of consecutive naturals, for example, 6400519 + ... + 6412897.

Almost surely, 2^79308638332 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 79308638332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91468590080).

79308638332 is an abundant number, since it is smaller than the sum of its proper divisors (103628541828).

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

79308638332 is a wasteful number, since it uses less digits than its factorization.

79308638332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12504 (or 12491 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 52.

The spelling of 79308638332 in words is "seventy-nine billion, three hundred eight million, six hundred thirty-eight thousand, three hundred thirty-two".