779425680 has 80 divisors (see below), whose sum is σ = 2635884864. Its totient is φ = 188951040.

The previous prime is 779425643. The next prime is 779425727. The reversal of 779425680 is 86524977.

779425680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144979 + ... + 150258.

Almost surely, 2^779425680 is an apocalyptic number.

It is an amenable number.

779425680 is an abundant number, since it is smaller than the sum of its proper divisors (1856459184).

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

779425680 is a wasteful number, since it uses less digits than its factorization.

779425680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295264 (or 295258 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 48.

The square root of 779425680 is about 27918.1962168046. The cubic root of 779425680 is about 920.2904250073.

The spelling of 779425680 in words is "seven hundred seventy-nine million, four hundred twenty-five thousand, six hundred eighty".