685784058524 has 48 divisors (see below), whose sum is σ = 1282872487680. Its totient is φ = 320058977280.

The previous prime is 685784058497. The next prime is 685784058649. The reversal of 685784058524 is 425850487586.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 3415694 + ... + 3610890.

It is an arithmetic number, because the mean of its divisors is an integer number (26726510160).

Almost surely, 2^685784058524 is an apocalyptic number.

It is an amenable number.

685784058524 is a deficient number, since it is larger than the sum of its proper divisors (597088429156).

685784058524 is a wasteful number, since it uses less digits than its factorization.

685784058524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196238 (or 196236 counting only the distinct ones).

The product of its (nonzero) digits is 86016000, while the sum is 62.

The spelling of 685784058524 in words is "six hundred eighty-five billion, seven hundred eighty-four million, fifty-eight thousand, five hundred twenty-four".