685630523382 has 64 divisors (see below), whose sum is σ = 1609664415744. Its totient is φ = 190581828480.

The previous prime is 685630523353. The next prime is 685630523401. The reversal of 685630523382 is 283325036586.

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 31 ways as a sum of consecutive naturals, for example, 31337907 + ... + 31359777.

It is an arithmetic number, because the mean of its divisors is an integer number (25151006496).

Almost surely, 2^685630523382 is an apocalyptic number.

685630523382 is an abundant number, since it is smaller than the sum of its proper divisors (924033892362).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

685630523382 is a wasteful number, since it uses less digits than its factorization.

685630523382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42093.

The product of its (nonzero) digits is 6220800, while the sum is 51.

The spelling of 685630523382 in words is "six hundred eighty-five billion, six hundred thirty million, five hundred twenty-three thousand, three hundred eighty-two".