79825841880 has 128 divisors (see below), whose sum is σ = 244260100800. Its totient is φ = 20862646272.

The previous prime is 79825841863. The next prime is 79825841941. The reversal of 79825841880 is 8814852897.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6334626 + ... + 6347214.

Almost surely, 2^79825841880 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 79825841880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122130050400).

79825841880 is an abundant number, since it is smaller than the sum of its proper divisors (164434258920).

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

79825841880 is a wasteful number, since it uses less digits than its factorization.

79825841880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13653 (or 13649 counting only the distinct ones).

The product of its (nonzero) digits is 10321920, while the sum is 60.

The spelling of 79825841880 in words is "seventy-nine billion, eight hundred twenty-five million, eight hundred forty-one thousand, eight hundred eighty".