689707494585 has 48 divisors (see below), whose sum is σ = 1211244503040. Its totient is φ = 363002140800.

The previous prime is 689707494563. The next prime is 689707494587. The reversal of 689707494585 is 585494707986.

689707494585 is a `hidden beast` number, since 6 + 89 + 7 + 0 + 7 + 494 + 58 + 5 = 666.

It is not a de Polignac number, because 689707494585 - 2¹² = 689707490489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (689707494587) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7050760 + ... + 7147910.

It is an arithmetic number, because the mean of its divisors is an integer number (25234260480).

Almost surely, 2^689707494585 is an apocalyptic number.

It is an amenable number.

689707494585 is a deficient number, since it is larger than the sum of its proper divisors (521537008455).

689707494585 is a wasteful number, since it uses less digits than its factorization.

689707494585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99238 (or 99235 counting only the distinct ones).

The product of its (nonzero) digits is 609638400, while the sum is 72.

The spelling of 689707494585 in words is "six hundred eighty-nine billion, seven hundred seven million, four hundred ninety-four thousand, five hundred eighty-five".