685283645670 has 32 divisors (see below), whose sum is σ = 1771194654432. Its totient is φ = 168685204992.

The previous prime is 685283645663. The next prime is 685283645677. The reversal of 685283645670 is 76546382586.

It is an interprime number because it is at equal distance from previous prime (685283645663) and next prime (685283645677).

It is a super-3 number, since 3×685283645670³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685283645677) 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, 878568387 + ... + 878569166.

It is an arithmetic number, because the mean of its divisors is an integer number (55349832951).

Almost surely, 2^685283645670 is an apocalyptic number.

685283645670 is an abundant number, since it is smaller than the sum of its proper divisors (1085911008762).

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

685283645670 is a wasteful number, since it uses less digits than its factorization.

685283645670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1757137576.

The product of its (nonzero) digits is 58060800, while the sum is 60.

The spelling of 685283645670 in words is "six hundred eighty-five billion, two hundred eighty-three million, six hundred forty-five thousand, six hundred seventy".