68966582818 has 48 divisors (see below), whose sum is σ = 125129055744. Its totient is φ = 28394694720.

The previous prime is 68966582809. The next prime is 68966582819. The reversal of 68966582818 is 81828566986.

It is a super-2 number, since 2×68966582818² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68966582819) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 333355 + ... + 499057.

It is an arithmetic number, because the mean of its divisors is an integer number (2606855328).

Almost surely, 2^68966582818 is an apocalyptic number.

68966582818 is a deficient number, since it is larger than the sum of its proper divisors (56162472926).

68966582818 is a wasteful number, since it uses less digits than its factorization.

68966582818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165887 (or 165880 counting only the distinct ones).

The product of its digits is 79626240, while the sum is 67.

The spelling of 68966582818 in words is "sixty-eight billion, nine hundred sixty-six million, five hundred eighty-two thousand, eight hundred eighteen".