79784944722 has 54 divisors (see below), whose sum is σ = 201111771159. Its totient is φ = 22793301720.

The previous prime is 79784944703. The next prime is 79784944727. The reversal of 79784944722 is 22744948797.

79784944722 is a `hidden beast` number, since 7 + 9 + 78 + 4 + 94 + 472 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 39892472361 + 39892472361 = 199731^2 + 199731^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=199731.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 79784944722.

It is not an unprimeable number, because it can be changed into a prime (79784944727) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 8383947 + ... + 8393457.

Almost surely, 2^79784944722 is an apocalyptic number.

79784944722 is an abundant number, since it is smaller than the sum of its proper divisors (121326826437).

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

79784944722 is an frugal number, since it uses more digits than its factorization.

79784944722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19044 (or 9523 counting only the distinct ones).

The product of its digits is 56899584, while the sum is 63.

The spelling of 79784944722 in words is "seventy-nine billion, seven hundred eighty-four million, nine hundred forty-four thousand, seven hundred twenty-two".