687100108664 has 32 divisors (see below), whose sum is σ = 1348387827840. Its totient is φ = 327620277600.

The previous prime is 687100108603. The next prime is 687100108697. The reversal of 687100108664 is 466801001786.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5579942 + ... + 5701749.

It is an arithmetic number, because the mean of its divisors is an integer number (42137119620).

Almost surely, 2^687100108664 is an apocalyptic number.

It is an amenable number.

687100108664 is a deficient number, since it is larger than the sum of its proper divisors (661287719176).

687100108664 is a wasteful number, since it uses less digits than its factorization.

687100108664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11282051 (or 11282047 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 47.

The spelling of 687100108664 in words is "six hundred eighty-seven billion, one hundred million, one hundred eight thousand, six hundred sixty-four".