79239998016 has 189 divisors, whose sum is σ = 234170326299. Its totient is φ = 25618387968.

The previous prime is 79239997961. The next prime is 79239998017. The reversal of 79239998016 is 61089993297.

It is a happy number.

The square root of 79239998016 is 281496.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 660695616 + 78579302400 = 25704^2 + 280320^2 .

It is not an unprimeable number, because it can be changed into a prime (79239998017) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 249968290 + ... + 249968606.

Almost surely, 2^79239998016 is an apocalyptic number.

79239998016 is the 281496-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79239998016

79239998016 is an abundant number, since it is smaller than the sum of its proper divisors (154930328283).

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

79239998016 is an equidigital number, since it uses as much as digits as its factorization.

79239998016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726 (or 359 counting only the distinct ones).

The product of its (nonzero) digits is 13226976, while the sum is 63.

The spelling of 79239998016 in words is "seventy-nine billion, two hundred thirty-nine million, nine hundred ninety-eight thousand, sixteen".