786307680 has 72 divisors (see below), whose sum is σ = 2683279872. Its totient is φ = 209681664.

The previous prime is 786307679. The next prime is 786307699. The reversal of 786307680 is 86703687.

786307680 is a `hidden beast` number, since 7 + 8 + 630 + 7 + 6 + 8 + 0 = 666.

786307680 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 (72).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 271584 + ... + 274463.

It is an arithmetic number, because the mean of its divisors is an integer number (37267776).

Almost surely, 2^786307680 is an apocalyptic number.

It is an amenable number.

786307680 is an abundant number, since it is smaller than the sum of its proper divisors (1896972192).

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

786307680 is a wasteful number, since it uses less digits than its factorization.

786307680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546068 (or 546057 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 786307680 is about 28041.1782919335. The cubic root of 786307680 is about 922.9910840692.

The spelling of 786307680 in words is "seven hundred eighty-six million, three hundred seven thousand, six hundred eighty".