681277665300 has 72 divisors (see below), whose sum is σ = 1977381835296. Its totient is φ = 181100914560.

The previous prime is 681277665287. The next prime is 681277665329. The reversal of 681277665300 is 3566772186.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3486802 + ... + 3677001.

Almost surely, 2^681277665300 is an apocalyptic number.

681277665300 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

681277665300 is an abundant number, since it is smaller than the sum of its proper divisors (1296104169996).

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

681277665300 is a wasteful number, since it uses less digits than its factorization.

681277665300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7164137 (or 7164130 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 51.

The spelling of 681277665300 in words is "six hundred eighty-one billion, two hundred seventy-seven million, six hundred sixty-five thousand, three hundred".