685751748700 has 36 divisors (see below), whose sum is σ = 1566401367160. Its totient is φ = 259863819840.

The previous prime is 685751748697. The next prime is 685751748701. The reversal of 685751748700 is 7847157586.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685751748701) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 180459087 + ... + 180462886.

Almost surely, 2^685751748700 is an apocalyptic number.

It is an amenable number.

685751748700 is an abundant number, since it is smaller than the sum of its proper divisors (880649618460).

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

685751748700 is a wasteful number, since it uses less digits than its factorization.

685751748700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360922006 (or 360921999 counting only the distinct ones).

The product of its (nonzero) digits is 13171200, while the sum is 58.

The spelling of 685751748700 in words is "six hundred eighty-five billion, seven hundred fifty-one million, seven hundred forty-eight thousand, seven hundred".