686000717125585 has 16 divisors (see below), whose sum is σ = 858994131308544. Its totient is φ = 524938500361792.

The previous prime is 686000717125579. The next prime is 686000717125651. The reversal of 686000717125585 is 585521717000686.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 686000717125585 - 2²⁹ = 686000180254673 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46568739 + ... + 59503351.

It is an arithmetic number, because the mean of its divisors is an integer number (53687133206784).

Almost surely, 2^{686000717125585} is an apocalyptic number.

It is an amenable number.

686000717125585 is a deficient number, since it is larger than the sum of its proper divisors (172993414182959).

686000717125585 is a wasteful number, since it uses less digits than its factorization.

686000717125585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13395824.

The product of its (nonzero) digits is 28224000, while the sum is 61.

The spelling of 686000717125585 in words is "six hundred eighty-six trillion, seven hundred seventeen million, one hundred twenty-five thousand, five hundred eighty-five".