689921022288 has 240 divisors, whose sum is σ = 1955219302400. Its totient is φ = 208825309440.

The previous prime is 689921022277. The next prime is 689921022361. The reversal of 689921022288 is 882220129986.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1646589343 + ... + 1646589761.

Almost surely, 2^689921022288 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 689921022288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (977609651200).

689921022288 is an abundant number, since it is smaller than the sum of its proper divisors (1265298280112).

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

689921022288 is a wasteful number, since it uses less digits than its factorization.

689921022288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038 (or 613 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 57.

The spelling of 689921022288 in words is "six hundred eighty-nine billion, nine hundred twenty-one million, twenty-two thousand, two hundred eighty-eight".