779227597568 has 288 divisors, whose sum is σ = 1927532880000. Its totient is φ = 313175310336.

The previous prime is 779227597559. The next prime is 779227597597. The reversal of 779227597568 is 865795722977.

It is a junction number, because it is equal to n+sod(n) for n = 779227597495 and 779227597504.

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, 503051258 + ... + 503052806.

It is an arithmetic number, because the mean of its divisors is an integer number (6692822500).

Almost surely, 2^779227597568 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 779227597568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (963766440000).

779227597568 is an abundant number, since it is smaller than the sum of its proper divisors (1148305282432).

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

779227597568 is a wasteful number, since it uses less digits than its factorization.

779227597568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1940 (or 1912 counting only the distinct ones).

The product of its digits is 933508800, while the sum is 74.

The spelling of 779227597568 in words is "seven hundred seventy-nine billion, two hundred twenty-seven million, five hundred ninety-seven thousand, five hundred sixty-eight".