689186350975 has 6 divisors (see below), whose sum is σ = 854591075240. Its totient is φ = 551349080760.

The previous prime is 689186350973. The next prime is 689186350999. The reversal of 689186350975 is 579053681986.

It is not a de Polignac number, because 689186350975 - 2¹ = 689186350973 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 689186350975.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689186350973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13783726995 + ... + 13783727044.

Almost surely, 2^689186350975 is an apocalyptic number.

689186350975 is a deficient number, since it is larger than the sum of its proper divisors (165404724265).

689186350975 is a wasteful number, since it uses less digits than its factorization.

689186350975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27567454049 (or 27567454044 counting only the distinct ones).

The product of its (nonzero) digits is 97977600, while the sum is 67.

The spelling of 689186350975 in words is "six hundred eighty-nine billion, one hundred eighty-six million, three hundred fifty thousand, nine hundred seventy-five".