685574847271000 has 64 divisors (see below), whose sum is σ = 1604282326788960. Its totient is φ = 274223582640000.

The previous prime is 685574847270961. The next prime is 685574847271007. The reversal of 685574847271000 is 172748475586.

It is a super-2 number, since 2×685574847271000² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685574847271007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35337295 + ... + 51184705.

Almost surely, 2^{685574847271000} is an apocalyptic number.

It is an amenable number.

685574847271000 is an abundant number, since it is smaller than the sum of its proper divisors (918707479517960).

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

685574847271000 is a wasteful number, since it uses less digits than its factorization.

685574847271000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15890693 (or 15890679 counting only the distinct ones).

The product of its (nonzero) digits is 105369600, while the sum is 64.

The spelling of 685574847271000 in words is "six hundred eighty-five trillion, five hundred seventy-four billion, eight hundred forty-seven million, two hundred seventy-one thousand".