684274718248 has 128 divisors (see below), whose sum is σ = 1504766730240. Its totient is φ = 288737568000.

The previous prime is 684274718233. The next prime is 684274718251. The reversal of 684274718248 is 842817472486.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7118715 + ... + 7214197.

It is an arithmetic number, because the mean of its divisors is an integer number (11755990080).

Almost surely, 2^684274718248 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 684274718248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (752383365120).

684274718248 is an abundant number, since it is smaller than the sum of its proper divisors (820492011992).

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

684274718248 is a wasteful number, since it uses less digits than its factorization.

684274718248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95639 (or 95635 counting only the distinct ones).

The product of its digits is 38535168, while the sum is 61.

The spelling of 684274718248 in words is "six hundred eighty-four billion, two hundred seventy-four million, seven hundred eighteen thousand, two hundred forty-eight".