779242672 has 20 divisors (see below), whose sum is σ = 1625920240. Its totient is φ = 359650368.

The previous prime is 779242631. The next prime is 779242693. The reversal of 779242672 is 276242977.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1872972 + ... + 1873387.

It is an arithmetic number, because the mean of its divisors is an integer number (81296012).

Almost surely, 2^779242672 is an apocalyptic number.

It is an amenable number.

779242672 is an abundant number, since it is smaller than the sum of its proper divisors (846677568).

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

779242672 is a wasteful number, since it uses less digits than its factorization.

779242672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3746380 (or 3746374 counting only the distinct ones).

The product of its digits is 592704, while the sum is 46.

The square root of 779242672 is about 27914.9184487435. The cubic root of 779242672 is about 920.2183917578.

The spelling of 779242672 in words is "seven hundred seventy-nine million, two hundred forty-two thousand, six hundred seventy-two".