79138207723044 has 24 divisors (see below), whose sum is σ = 184831848381600. Its totient is φ = 26354255379904.

The previous prime is 79138207723033. The next prime is 79138207723087. The reversal of 79138207723044 is 44032770283197.

It is a super-2 number, since 2×79138207723044² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3143386194 + ... + 3143411369.

It is an arithmetic number, because the mean of its divisors is an integer number (7701327015900).

Almost surely, 2^{79138207723044} is an apocalyptic number.

It is an amenable number.

79138207723044 is an abundant number, since it is smaller than the sum of its proper divisors (105693640658556).

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

79138207723044 is a wasteful number, since it uses less digits than its factorization.

79138207723044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6286798619 (or 6286798617 counting only the distinct ones).

The product of its (nonzero) digits is 14224896, while the sum is 57.

The spelling of 79138207723044 in words is "seventy-nine trillion, one hundred thirty-eight billion, two hundred seven million, seven hundred twenty-three thousand, forty-four".