689015590068 has 48 divisors (see below), whose sum is σ = 1732446527616. Its totient is φ = 211873284480.

The previous prime is 689015590063. The next prime is 689015590069. The reversal of 689015590068 is 860095510986.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689015590061) 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 15 ways as a sum of consecutive naturals, for example, 1117488 + ... + 1620743.

It is an arithmetic number, because the mean of its divisors is an integer number (36092635992).

Almost surely, 2^689015590068 is an apocalyptic number.

It is an amenable number.

689015590068 is an abundant number, since it is smaller than the sum of its proper divisors (1043430937548).

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

689015590068 is a wasteful number, since it uses less digits than its factorization.

689015590068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2739864 (or 2739862 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 57.

The spelling of 689015590068 in words is "six hundred eighty-nine billion, fifteen million, five hundred ninety thousand, sixty-eight".