68517833344 has 32 divisors (see below), whose sum is σ = 138034106100. Its totient is φ = 33873979392.

The previous prime is 68517833333. The next prime is 68517833357. The reversal of 68517833344 is 44333871586.

It can be written as a sum of positive squares in 2 ways, for example, as 50935073344 + 17582760000 = 225688^2 + 132600^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 68517833291 and 68517833300.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2995887 + ... + 3018670.

Almost surely, 2^68517833344 is an apocalyptic number.

68517833344 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

68517833344 is an abundant number, since it is smaller than the sum of its proper divisors (69516272756).

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

68517833344 is an equidigital number, since it uses as much as digits as its factorization.

68517833344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6014660 (or 6014648 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 52.

The spelling of 68517833344 in words is "sixty-eight billion, five hundred seventeen million, eight hundred thirty-three thousand, three hundred forty-four".