689949314208 has 360 divisors, whose sum is σ = 2548987521696. Its totient is φ = 179207043840.

The previous prime is 689949314189. The next prime is 689949314261. The reversal of 689949314208 is 802413949986.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 2038291 + ... + 2352557.

Almost surely, 2^689949314208 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 689949314208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1274493760848).

689949314208 is an abundant number, since it is smaller than the sum of its proper divisors (1859038207488).

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

689949314208 is a wasteful number, since it uses less digits than its factorization.

689949314208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314318 (or 314290 counting only the distinct ones).

The product of its (nonzero) digits is 26873856, while the sum is 63.

The spelling of 689949314208 in words is "six hundred eighty-nine billion, nine hundred forty-nine million, three hundred fourteen thousand, two hundred eight".