687310307500 has 30 divisors (see below), whose sum is σ = 1503010185908. Its totient is φ = 274924122000.

The previous prime is 687310307483. The next prime is 687310307531. The reversal of 687310307500 is 5703013786.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 137459562 + ... + 137464561.

Almost surely, 2^687310307500 is an apocalyptic number.

It is an amenable number.

687310307500 is an abundant number, since it is smaller than the sum of its proper divisors (815699878408).

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

687310307500 is a wasteful number, since it uses less digits than its factorization.

687310307500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274924147 (or 274924130 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 40.

The spelling of 687310307500 in words is "six hundred eighty-seven billion, three hundred ten million, three hundred seven thousand, five hundred".