779122585872 has 120 divisors (see below), whose sum is σ = 2348599853600. Its totient is φ = 240316844544.

The previous prime is 779122585819. The next prime is 779122585877. The reversal of 779122585872 is 278585221977.

It is not an unprimeable number, because it can be changed into a prime (779122585877) 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, 3193597 + ... + 3428892.

Almost surely, 2^779122585872 is an apocalyptic number.

779122585872 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

779122585872 is an abundant number, since it is smaller than the sum of its proper divisors (1569477267728).

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

779122585872 is a wasteful number, since it uses less digits than its factorization.

779122585872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6622565 (or 6622556 counting only the distinct ones).

The product of its digits is 39513600, while the sum is 63.

The spelling of 779122585872 in words is "seven hundred seventy-nine billion, one hundred twenty-two million, five hundred eighty-five thousand, eight hundred seventy-two".