689473439294976 has 180 divisors, whose sum is σ = 2314743279277572. Its totient is φ = 196992411162624.

The previous prime is 689473439294947. The next prime is 689473439294989. The reversal of 689473439294976 is 679492934374986.

689473439294976 is a `hidden beast` number, since 6 + 8 + 9 + 4 + 7 + 343 + 92 + 94 + 97 + 6 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1526563110 + ... + 1527014693.

Almost surely, 2^{689473439294976} is an apocalyptic number.

It is an amenable number.

689473439294976 is an abundant number, since it is smaller than the sum of its proper divisors (1625269839982596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

689473439294976 is a wasteful number, since it uses less digits than its factorization.

689473439294976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3053577841 (or 3053577815 counting only the distinct ones).

The product of its digits is 106662334464, while the sum is 90.

The spelling of 689473439294976 in words is "six hundred eighty-nine trillion, four hundred seventy-three billion, four hundred thirty-nine million, two hundred ninety-four thousand, nine hundred seventy-six".