79723839356 has 12 divisors (see below), whose sum is σ = 159447678768. Its totient is φ = 34167359712.

The previous prime is 79723839341. The next prime is 79723839359. The reversal of 79723839356 is 65393832797.

79723839356 is an admirable number.

It is a super-2 number, since 2×79723839356² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79723839359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1423639961 + ... + 1423640016.

It is an arithmetic number, because the mean of its divisors is an integer number (13287306564).

Almost surely, 2^79723839356 is an apocalyptic number.

It is an amenable number.

79723839356 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

79723839356 is a wasteful number, since it uses less digits than its factorization.

79723839356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2847279988 (or 2847279986 counting only the distinct ones).

The product of its digits is 51438240, while the sum is 62.

The spelling of 79723839356 in words is "seventy-nine billion, seven hundred twenty-three million, eight hundred thirty-nine thousand, three hundred fifty-six".