79839588480 has 128 divisors (see below), whose sum is σ = 254782307520. Its totient is φ = 21265993728.

The previous prime is 79839588469. The next prime is 79839588487. The reversal of 79839588480 is 8488593897.

It is a Cunningham number, because it is equal to 282559²-1.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (79839588487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1671814 + ... + 1718906.

Almost surely, 2^79839588480 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 79839588480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127391153760).

79839588480 is an abundant number, since it is smaller than the sum of its proper divisors (174942719040).

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

79839588480 is a wasteful number, since it uses less digits than its factorization.

79839588480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47998 (or 47986 counting only the distinct ones).

The product of its (nonzero) digits is 139345920, while the sum is 69.

The spelling of 79839588480 in words is "seventy-nine billion, eight hundred thirty-nine million, five hundred eighty-eight thousand, four hundred eighty".