685301806280 has 1024 divisors, whose sum is σ = 2171009433600. Its totient is φ = 188654469120.

The previous prime is 685301806271. The next prime is 685301806291. The reversal of 685301806280 is 82608103586.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 4204305479 + ... + 4204305641.

It is an arithmetic number, because the mean of its divisors is an integer number (2120126400).

Almost surely, 2^685301806280 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 685301806280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1085504716800).

685301806280 is an abundant number, since it is smaller than the sum of its proper divisors (1485707627320).

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

685301806280 is a wasteful number, since it uses less digits than its factorization.

685301806280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334 (or 330 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 47.

The spelling of 685301806280 in words is "six hundred eighty-five billion, three hundred one million, eight hundred six thousand, two hundred eighty".