79738994384 has 120 divisors (see below), whose sum is σ = 189425721960. Its totient is φ = 32372401152.

The previous prime is 79738994383. The next prime is 79738994389. The reversal of 79738994384 is 48349983797.

It can be written as a sum of positive squares in 4 ways, for example, as 4903920784 + 74835073600 = 70028^2 + 273560^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79738994383) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1171922 + ... + 1238094.

It is an arithmetic number, because the mean of its divisors is an integer number (1578547683).

Almost surely, 2^79738994384 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 79738994384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94712860980).

79738994384 is an abundant number, since it is smaller than the sum of its proper divisors (109686727576).

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

79738994384 is a wasteful number, since it uses less digits than its factorization.

79738994384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66277 (or 66264 counting only the distinct ones).

The product of its digits is 329204736, while the sum is 71.

The spelling of 79738994384 in words is "seventy-nine billion, seven hundred thirty-eight million, nine hundred ninety-four thousand, three hundred eighty-four".