79581257744384 has 360 divisors, whose sum is σ = 188735274523488. Its totient is φ = 33252767170560.

The previous prime is 79581257744369. The next prime is 79581257744413. The reversal of 79581257744384 is 48344775218597.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2239625882 + ... + 2239661414.

Almost surely, 2^{79581257744384} 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 79581257744384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94367637261744).

79581257744384 is an abundant number, since it is smaller than the sum of its proper divisors (109154016779104).

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

79581257744384 is a wasteful number, since it uses less digits than its factorization.

79581257744384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35649 (or 35606 counting only the distinct ones).

The product of its digits is 1896652800, while the sum is 74.

The spelling of 79581257744384 in words is "seventy-nine trillion, five hundred eighty-one billion, two hundred fifty-seven million, seven hundred forty-four thousand, three hundred eighty-four".