685248888524 has 12 divisors (see below), whose sum is σ = 1199196285000. Its totient is φ = 342621378528.

The previous prime is 685248888497. The next prime is 685248888539. The reversal of 685248888524 is 425888842586.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220274 + ... + 1191225.

It is an arithmetic number, because the mean of its divisors is an integer number (99933023750).

Almost surely, 2^685248888524 is an apocalyptic number.

It is an amenable number.

685248888524 is a deficient number, since it is larger than the sum of its proper divisors (513947396476).

685248888524 is a wasteful number, since it uses less digits than its factorization.

685248888524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1532872 (or 1532870 counting only the distinct ones).

The product of its digits is 314572800, while the sum is 68.

The spelling of 685248888524 in words is "six hundred eighty-five billion, two hundred forty-eight million, eight hundred eighty-eight thousand, five hundred twenty-four".