79091787200 has 84 divisors (see below), whose sum is σ = 195691167672. Its totient is φ = 31461811200.

The previous prime is 79091787199. The next prime is 79091787209. The reversal of 79091787200 is 278719097.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79091787209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 153047 + ... + 426153.

It is an arithmetic number, because the mean of its divisors is an integer number (2329656758).

Almost surely, 2^79091787200 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 79091787200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97845583836).

79091787200 is an abundant number, since it is smaller than the sum of its proper divisors (116599380472).

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

79091787200 is a wasteful number, since it uses less digits than its factorization.

79091787200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273310 (or 273295 counting only the distinct ones).

The product of its (nonzero) digits is 444528, while the sum is 50.

The spelling of 79091787200 in words is "seventy-nine billion, ninety-one million, seven hundred eighty-seven thousand, two hundred".