680351872500 has 120 divisors (see below), whose sum is σ = 2204138699840. Its totient is φ = 181427148000.

The previous prime is 680351872483. The next prime is 680351872517. The reversal of 680351872500 is 5278153086.

680351872500 is a `hidden beast` number, since 6 + 80 + 3 + 518 + 7 + 2 + 50 + 0 = 666.

680351872500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (680351872483) and next prime (680351872517).

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 39 ways as a sum of consecutive naturals, for example, 4972144 + ... + 5107143.

Almost surely, 2^680351872500 is an apocalyptic number.

680351872500 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

680351872500 is an abundant number, since it is smaller than the sum of its proper divisors (1523786827340).

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

680351872500 is a wasteful number, since it uses less digits than its factorization.

680351872500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10079320 (or 10079297 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The spelling of 680351872500 in words is "six hundred eighty billion, three hundred fifty-one million, eight hundred seventy-two thousand, five hundred".