689602314240 has 720 divisors, whose sum is σ = 2799549567360. Its totient is φ = 153731727360.

The previous prime is 689602314227. The next prime is 689602314253. The reversal of 689602314240 is 42413206986.

689602314240 is a `hidden beast` number, since 6 + 8 + 9 + 602 + 3 + 14 + 24 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (689602314227) and next prime (689602314253).

It is a tau number, because it is divible by the number of its divisors (720).

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 211597731 + ... + 211600989.

It is an arithmetic number, because the mean of its divisors is an integer number (3888263288).

Almost surely, 2^689602314240 is an apocalyptic number.

689602314240 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 689602314240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1399774783680).

689602314240 is an abundant number, since it is smaller than the sum of its proper divisors (2109947253120).

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

689602314240 is a wasteful number, since it uses less digits than its factorization.

689602314240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3346 (or 3317 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The spelling of 689602314240 in words is "six hundred eighty-nine billion, six hundred two million, three hundred fourteen thousand, two hundred forty".