683218966872 has 64 divisors (see below), whose sum is σ = 1898772341760. Its totient is φ = 203439888000.

The previous prime is 683218966819. The next prime is 683218966873. The reversal of 683218966872 is 278669812386.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (683218966873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35309754 + ... + 35329097.

It is an arithmetic number, because the mean of its divisors is an integer number (29668317840).

Almost surely, 2^683218966872 is an apocalyptic number.

683218966872 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

683218966872 is an abundant number, since it is smaller than the sum of its proper divisors (1215553374888).

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

683218966872 is a wasteful number, since it uses less digits than its factorization.

683218966872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70638904 (or 70638900 counting only the distinct ones).

The product of its digits is 83607552, while the sum is 66.

The spelling of 683218966872 in words is "six hundred eighty-three billion, two hundred eighteen million, nine hundred sixty-six thousand, eight hundred seventy-two".