79870055200 has 144 divisors (see below), whose sum is σ = 211910889960. Its totient is φ = 29219512320.

The previous prime is 79870055179. The next prime is 79870055201. The reversal of 79870055200 is 255007897.

It can be written as a sum of positive squares in 12 ways, for example, as 2868245136 + 77001810064 = 53556^2 + 277492^2 .

It is not an unprimeable number, because it can be changed into a prime (79870055201) 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, 1098372 + ... + 1168828.

Almost surely, 2^79870055200 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 79870055200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105955444980).

79870055200 is an abundant number, since it is smaller than the sum of its proper divisors (132040834760).

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

79870055200 is a wasteful number, since it uses less digits than its factorization.

79870055200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70599 (or 70586 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 43.

The spelling of 79870055200 in words is "seventy-nine billion, eight hundred seventy million, fifty-five thousand, two hundred".