79830044560 has 80 divisors (see below), whose sum is σ = 212373907200. Its totient is φ = 27337517568.

The previous prime is 79830044501. The next prime is 79830044563. The reversal of 79830044560 is 6544003897.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 79830044560.

It is not an unprimeable number, because it can be changed into a prime (79830044563) 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 15 ways as a sum of consecutive naturals, for example, 384886 + ... + 554794.

It is an arithmetic number, because the mean of its divisors is an integer number (2654673840).

Almost surely, 2^79830044560 is an apocalyptic number.

79830044560 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79830044560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106186953600).

79830044560 is an abundant number, since it is smaller than the sum of its proper divisors (132543862640).

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

79830044560 is a wasteful number, since it uses less digits than its factorization.

79830044560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170768 (or 170762 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 46.

The spelling of 79830044560 in words is "seventy-nine billion, eight hundred thirty million, forty-four thousand, five hundred sixty".