687343647604 has 24 divisors (see below), whose sum is σ = 1243838459808. Its totient is φ = 332154794400.

The previous prime is 687343647587. The next prime is 687343647623. The reversal of 687343647604 is 406746343786.

687343647604 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 24181222 + ... + 24209629.

It is an arithmetic number, because the mean of its divisors is an integer number (51826602492).

Almost surely, 2^687343647604 is an apocalyptic number.

It is an amenable number.

687343647604 is a deficient number, since it is larger than the sum of its proper divisors (556494812204).

687343647604 is a wasteful number, since it uses less digits than its factorization.

687343647604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48390975 (or 48390973 counting only the distinct ones).

The product of its (nonzero) digits is 48771072, while the sum is 58.

The spelling of 687343647604 in words is "six hundred eighty-seven billion, three hundred forty-three million, six hundred forty-seven thousand, six hundred four".