689858639360 has 480 divisors, whose sum is σ = 1930729996800. Its totient is φ = 234373201920.

The previous prime is 689858639359. The next prime is 689858639399. The reversal of 689858639360 is 63936858986.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 803094611 + ... + 803095469.

It is an arithmetic number, because the mean of its divisors is an integer number (4022354160).

Almost surely, 2^689858639360 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 689858639360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (965364998400).

689858639360 is an abundant number, since it is smaller than the sum of its proper divisors (1240871357440).

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

689858639360 is a wasteful number, since it uses less digits than its factorization.

689858639360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010 (or 975 counting only the distinct ones).

The product of its (nonzero) digits is 403107840, while the sum is 71.

The spelling of 689858639360 in words is "six hundred eighty-nine billion, eight hundred fifty-eight million, six hundred thirty-nine thousand, three hundred sixty".