687107551875 has 40 divisors (see below), whose sum is σ = 1175753800848. Its totient is φ = 356553072000.

The previous prime is 687107551807. The next prime is 687107551951. The reversal of 687107551875 is 578155701786.

It is not a de Polignac number, because 687107551875 - 2¹¹ = 687107549827 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4882752 + ... + 5021501.

Almost surely, 2^687107551875 is an apocalyptic number.

687107551875 is a deficient number, since it is larger than the sum of its proper divisors (488646248973).

687107551875 is an equidigital number, since it uses as much as digits as its factorization.

687107551875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9904313 (or 9904298 counting only the distinct ones).

The product of its (nonzero) digits is 16464000, while the sum is 60.

The spelling of 687107551875 in words is "six hundred eighty-seven billion, one hundred seven million, five hundred fifty-one thousand, eight hundred seventy-five".