79959761728 has 168 divisors, whose sum is σ = 211954445280. Its totient is φ = 29513272320.

The previous prime is 79959761699. The next prime is 79959761767. The reversal of 79959761728 is 82716795997.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 594426 + ... + 716422.

Almost surely, 2^79959761728 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 79959761728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105977222640).

79959761728 is an abundant number, since it is smaller than the sum of its proper divisors (131994683552).

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

79959761728 is a wasteful number, since it uses less digits than its factorization.

79959761728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122053 (or 122036 counting only the distinct ones).

The product of its digits is 120022560, while the sum is 70.

The spelling of 79959761728 in words is "seventy-nine billion, nine hundred fifty-nine million, seven hundred sixty-one thousand, seven hundred twenty-eight".