68107015624 has 48 divisors (see below), whose sum is σ = 135519774300. Its totient is φ = 32064197760.

The previous prime is 68107015619. The next prime is 68107015631. The reversal of 68107015624 is 42651070186.

It can be written as a sum of positive squares in 2 ways, for example, as 67969704100 + 137311524 = 260710^2 + 11718^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 164742 + ... + 404170.

Almost surely, 2^68107015624 is an apocalyptic number.

It is an amenable number.

68107015624 is a deficient number, since it is larger than the sum of its proper divisors (67412758676).

68107015624 is a wasteful number, since it uses less digits than its factorization.

68107015624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239534 (or 239499 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The spelling of 68107015624 in words is "sixty-eight billion, one hundred seven million, fifteen thousand, six hundred twenty-four".