689351232752 has 160 divisors (see below), whose sum is σ = 1659290465280. Its totient is φ = 270156902400.

The previous prime is 689351232707. The next prime is 689351232761. The reversal of 689351232752 is 257232153986.

It is a junction number, because it is equal to n+sod(n) for n = 689351232694 and 689351232703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83321288 + ... + 83329560.

It is an arithmetic number, because the mean of its divisors is an integer number (10370565408).

Almost surely, 2^689351232752 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 689351232752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (829645232640).

689351232752 is an abundant number, since it is smaller than the sum of its proper divisors (969939232528).

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

689351232752 is a wasteful number, since it uses less digits than its factorization.

689351232752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8831 (or 8825 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 53.

The spelling of 689351232752 in words is "six hundred eighty-nine billion, three hundred fifty-one million, two hundred thirty-two thousand, seven hundred fifty-two".