685766840267 has 16 divisors (see below), whose sum is σ = 750012612000. Its totient is φ = 624532011264.

The previous prime is 685766840263. The next prime is 685766840281. The reversal of 685766840267 is 762048667586.

It is not a de Polignac number, because 685766840267 - 2² = 685766840263 is a prime.

It is not an unprimeable number, because it can be changed into a prime (685766840263) 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, 2591258 + ... + 2843615.

It is an arithmetic number, because the mean of its divisors is an integer number (46875788250).

Almost surely, 2^685766840267 is an apocalyptic number.

685766840267 is a deficient number, since it is larger than the sum of its proper divisors (64245771733).

685766840267 is a wasteful number, since it uses less digits than its factorization.

685766840267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5435150.

The product of its (nonzero) digits is 162570240, while the sum is 65.

The spelling of 685766840267 in words is "six hundred eighty-five billion, seven hundred sixty-six million, eight hundred forty thousand, two hundred sixty-seven".