689707494588 has 96 divisors (see below), whose sum is σ = 1938754854400. Its totient is φ = 186424125696.

The previous prime is 689707494587. The next prime is 689707494643. The reversal of 689707494588 is 885494707986.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 826806 + ... + 1436322.

Almost surely, 2^689707494588 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 689707494588, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (969377427200).

689707494588 is an abundant number, since it is smaller than the sum of its proper divisors (1249047359812).

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

689707494588 is a wasteful number, since it uses less digits than its factorization.

689707494588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610259 (or 610257 counting only the distinct ones).

The product of its (nonzero) digits is 975421440, while the sum is 75.

The spelling of 689707494588 in words is "six hundred eighty-nine billion, seven hundred seven million, four hundred ninety-four thousand, five hundred eighty-eight".