680774780 has 48 divisors (see below), whose sum is σ = 1636755456. Its totient is φ = 232994880.

The previous prime is 680774779. The next prime is 680774819. The reversal of 680774780 is 87477086.

680774780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 80975 + ... + 88985.

It is an arithmetic number, because the mean of its divisors is an integer number (34099072).

Almost surely, 2^680774780 is an apocalyptic number.

It is an amenable number.

680774780 is an abundant number, since it is smaller than the sum of its proper divisors (955980676).

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

680774780 is a wasteful number, since it uses less digits than its factorization.

680774780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8634 (or 8632 counting only the distinct ones).

The product of its (nonzero) digits is 526848, while the sum is 47.

The square root of 680774780 is about 26091.6611199824. The cubic root of 680774780 is about 879.6997856781.

The spelling of 680774780 in words is "six hundred eighty million, seven hundred seventy-four thousand, seven hundred eighty".