689386562873568 has 864 divisors, whose sum is σ = 2446006292271360. Its totient is φ = 188316321984000.

The previous prime is 689386562873557. The next prime is 689386562873609. The reversal of 689386562873568 is 865378265683986.

689386562873568 is a `hidden beast` number, since 6 + 8 + 9 + 3 + 8 + 6 + 562 + 8 + 7 + 35 + 6 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (864).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 3376744293 + ... + 3376948443.

It is an arithmetic number, because the mean of its divisors is an integer number (2831025801240).

Almost surely, 2^{689386562873568} 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 689386562873568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1223003146135680).

689386562873568 is an abundant number, since it is smaller than the sum of its proper divisors (1756619729397792).

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

689386562873568 is a wasteful number, since it uses less digits than its factorization.

689386562873568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204329 (or 204277 counting only the distinct ones).

The product of its digits is 150493593600, while the sum is 90.

The spelling of 689386562873568 in words is "six hundred eighty-nine trillion, three hundred eighty-six billion, five hundred sixty-two million, eight hundred seventy-three thousand, five hundred sixty-eight".