689284963584 has 108 divisors (see below), whose sum is σ = 2271289742176. Its totient is φ = 196938556416.

The previous prime is 689284963583. The next prime is 689284963607. The reversal of 689284963584 is 485369482986.

It is a happy number.

689284963584 is a `hidden beast` number, since 6 + 8 + 9 + 28 + 496 + 35 + 84 = 666.

It is a super-2 number, since 2×689284963584² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689284963583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21353074 + ... + 21385329.

Almost surely, 2^689284963584 is an apocalyptic number.

689284963584 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

689284963584 is an abundant number, since it is smaller than the sum of its proper divisors (1582004778592).

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

689284963584 is a wasteful number, since it uses less digits than its factorization.

689284963584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42738432 (or 42738415 counting only the distinct ones).

The product of its digits is 716636160, while the sum is 72.

The spelling of 689284963584 in words is "six hundred eighty-nine billion, two hundred eighty-four million, nine hundred sixty-three thousand, five hundred eighty-four".