685283471580 has 24 divisors (see below), whose sum is σ = 1918793720592. Its totient is φ = 182742259072.

The previous prime is 685283471519. The next prime is 685283471669. The reversal of 685283471580 is 85174382586.

It is a super-2 number, since 2×685283471580² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 685283471580.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5710695537 + ... + 5710695656.

It is an arithmetic number, because the mean of its divisors is an integer number (79949738358).

Almost surely, 2^685283471580 is an apocalyptic number.

685283471580 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

685283471580 is an abundant number, since it is smaller than the sum of its proper divisors (1233510249012).

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

685283471580 is a wasteful number, since it uses less digits than its factorization.

685283471580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11421391205 (or 11421391203 counting only the distinct ones).

The product of its (nonzero) digits is 12902400, while the sum is 57.

The spelling of 685283471580 in words is "six hundred eighty-five billion, two hundred eighty-three million, four hundred seventy-one thousand, five hundred eighty".