79140804856722 has 48 divisors (see below), whose sum is σ = 195968666117952. Its totient is φ = 22611547893600.

The previous prime is 79140804856693. The next prime is 79140804856727. The reversal of 79140804856722 is 22765840804197.

It is a happy number.

79140804856722 is a `hidden beast` number, since 7 + 9 + 1 + 4 + 0 + 8 + 0 + 48 + 567 + 22 = 666.

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 79140804856722.

It is not an unprimeable number, because it can be changed into a prime (79140804856727) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26311972 + ... + 29165072.

It is an arithmetic number, because the mean of its divisors is an integer number (4082680544124).

Almost surely, 2^{79140804856722} is an apocalyptic number.

79140804856722 is an abundant number, since it is smaller than the sum of its proper divisors (116827861261230).

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

79140804856722 is a wasteful number, since it uses less digits than its factorization.

79140804856722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3073263 (or 3073260 counting only the distinct ones).

The product of its (nonzero) digits is 54190080, while the sum is 63.

The spelling of 79140804856722 in words is "seventy-nine trillion, one hundred forty billion, eight hundred four million, eight hundred fifty-six thousand, seven hundred twenty-two".