689707494586 has 32 divisors (see below), whose sum is σ = 1131227596800. Its totient is φ = 312777344880.

The previous prime is 689707494563. The next prime is 689707494587. The reversal of 689707494586 is 685494707986.

It is a super-2 number, since 2×689707494586² (a number of 24 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 41146075 + ... + 41162833.

It is an arithmetic number, because the mean of its divisors is an integer number (35350862400).

Almost surely, 2^689707494586 is an apocalyptic number.

689707494586 is a deficient number, since it is larger than the sum of its proper divisors (441520102214).

689707494586 is a wasteful number, since it uses less digits than its factorization.

689707494586 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20994.

The product of its (nonzero) digits is 731566080, while the sum is 73.

The spelling of 689707494586 in words is "six hundred eighty-nine billion, seven hundred seven million, four hundred ninety-four thousand, five hundred eighty-six".