689095590984 has 48 divisors (see below), whose sum is σ = 1892586496320. Its totient is φ = 226463338080.

The previous prime is 689095590979. The next prime is 689095591021. The reversal of 689095590984 is 489095590986.

689095590984 is a `hidden beast` number, since 68 + 9 + 0 + 9 + 559 + 0 + 9 + 8 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67394692 + ... + 67404915.

It is an arithmetic number, because the mean of its divisors is an integer number (39428885340).

Almost surely, 2^689095590984 is an apocalyptic number.

It is an amenable number.

689095590984 is an abundant number, since it is smaller than the sum of its proper divisors (1203490905336).

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

689095590984 is a wasteful number, since it uses less digits than its factorization.

689095590984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134799690 (or 134799683 counting only the distinct ones).

The product of its (nonzero) digits is 251942400, while the sum is 72.

The spelling of 689095590984 in words is "six hundred eighty-nine billion, ninety-five million, five hundred ninety thousand, nine hundred eighty-four".