79118622720 has 336 divisors, whose sum is σ = 284454752400. Its totient is φ = 21095645184.

The previous prime is 79118622719. The next prime is 79118622731. The reversal of 79118622720 is 2722681197.

It is a happy number.

79118622720 is a `hidden beast` number, since 7 + 9 + 1 + 18 + 622 + 7 + 2 + 0 = 666.

It is a super-2 number, since 2×79118622720² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9949306 + ... + 9957254.

It is an arithmetic number, because the mean of its divisors is an integer number (846591525).

Almost surely, 2^79118622720 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79118622720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142227376200).

79118622720 is an abundant number, since it is smaller than the sum of its proper divisors (205336129680).

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

79118622720 is an frugal number, since it uses more digits than its factorization.

79118622720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7995 (or 7959 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The spelling of 79118622720 in words is "seventy-nine billion, one hundred eighteen million, six hundred twenty-two thousand, seven hundred twenty".