685634883548 has 12 divisors (see below), whose sum is σ = 1238566241472. Its totient is φ = 331758814560.

The previous prime is 685634883523. The next prime is 685634883559. The reversal of 685634883548 is 845388436586.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2764656665 + ... + 2764656912.

It is an arithmetic number, because the mean of its divisors is an integer number (103213853456).

Almost surely, 2^685634883548 is an apocalyptic number.

It is an amenable number.

685634883548 is a deficient number, since it is larger than the sum of its proper divisors (552931357924).

685634883548 is a wasteful number, since it uses less digits than its factorization.

685634883548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5529313612 (or 5529313610 counting only the distinct ones).

The product of its digits is 530841600, while the sum is 68.

The spelling of 685634883548 in words is "six hundred eighty-five billion, six hundred thirty-four million, eight hundred eighty-three thousand, five hundred forty-eight".