79402219200 has 504 divisors, whose sum is σ = 296645076000. Its totient is φ = 20104888320.

The previous prime is 79402219189. The next prime is 79402219201. The reversal of 79402219200 is 291220497.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (79402219201) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 49347996 + ... + 49349604.

It is an arithmetic number, because the mean of its divisors is an integer number (588581500).

Almost surely, 2^79402219200 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 79402219200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148322538000).

79402219200 is an abundant number, since it is smaller than the sum of its proper divisors (217242856800).

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

79402219200 is a wasteful number, since it uses less digits than its factorization.

79402219200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1809 (or 1791 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

Adding to 79402219200 its reverse (291220497), we get a palindrome (79693439697).

The spelling of 79402219200 in words is "seventy-nine billion, four hundred two million, two hundred nineteen thousand, two hundred".