79439164344 has 80 divisors (see below), whose sum is σ = 222546602520. Its totient is φ = 26474558400.

The previous prime is 79439164327. The next prime is 79439164349. The reversal of 79439164344 is 44346193497.

79439164344 is a `hidden beast` number, since 7 + 9 + 439 + 164 + 3 + 44 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79439164349) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4820022 + ... + 4836474.

Almost surely, 2^79439164344 is an apocalyptic number.

It is an amenable number.

79439164344 is an abundant number, since it is smaller than the sum of its proper divisors (143107438176).

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

79439164344 is a wasteful number, since it uses less digits than its factorization.

79439164344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23922 (or 23909 counting only the distinct ones).

The product of its digits is 7838208, while the sum is 54.

The spelling of 79439164344 in words is "seventy-nine billion, four hundred thirty-nine million, one hundred sixty-four thousand, three hundred forty-four".