680186234820 has 48 divisors (see below), whose sum is σ = 1915530281280. Its totient is φ = 180334536576.

The previous prime is 680186234801. The next prime is 680186234873. The reversal of 680186234820 is 28432681086.

It is a self number, because there is not a number n which added to its sum of digits gives 680186234820.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32753890 + ... + 32774649.

It is an arithmetic number, because the mean of its divisors is an integer number (39906880860).

Almost surely, 2^680186234820 is an apocalyptic number.

680186234820 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

680186234820 is an abundant number, since it is smaller than the sum of its proper divisors (1235344046460).

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

680186234820 is a wasteful number, since it uses less digits than its factorization.

680186234820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65528724 (or 65528722 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 48.

The spelling of 680186234820 in words is "six hundred eighty billion, one hundred eighty-six million, two hundred thirty-four thousand, eight hundred twenty".