79844367888 has 240 divisors, whose sum is σ = 248414100480. Its totient is φ = 23825615616.

The previous prime is 79844367877. The next prime is 79844367913. The reversal of 79844367888 is 88876344897.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5215381 + ... + 5230667.

It is an arithmetic number, because the mean of its divisors is an integer number (1035058752).

Almost surely, 2^79844367888 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 79844367888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124207050240).

79844367888 is an abundant number, since it is smaller than the sum of its proper divisors (168569732592).

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

79844367888 is a wasteful number, since it uses less digits than its factorization.

79844367888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15426 (or 15417 counting only the distinct ones).

The product of its digits is 520224768, while the sum is 72.

The spelling of 79844367888 in words is "seventy-nine billion, eight hundred forty-four million, three hundred sixty-seven thousand, eight hundred eighty-eight".