779460864 has 288 divisors, whose sum is σ = 2692193280. Its totient is φ = 194420736.

The previous prime is 779460841. The next prime is 779460889. The reversal of 779460864 is 468064977.

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, 1327579 + ... + 1328165.

Almost surely, 2^779460864 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 779460864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1346096640).

779460864 is an abundant number, since it is smaller than the sum of its proper divisors (1912732416).

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

779460864 is a wasteful number, since it uses less digits than its factorization.

779460864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645 (or 631 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 51.

The square root of 779460864 is about 27918.8263363631. The cubic root of 779460864 is about 920.3042723875.

The spelling of 779460864 in words is "seven hundred seventy-nine million, four hundred sixty thousand, eight hundred sixty-four".