68183816459 has 16 divisors (see below), whose sum is σ = 76823995104. Its totient is φ = 59982624000.

The previous prime is 68183816447. The next prime is 68183816473. The reversal of 68183816459 is 95461838186.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 68183816459 - 2⁴ = 68183816443 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68183816398 and 68183816407.

It is not an unprimeable number, because it can be changed into a prime (68183816429) 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, 758492 + ... + 843609.

It is an arithmetic number, because the mean of its divisors is an integer number (4801499694).

Almost surely, 2^68183816459 is an apocalyptic number.

68183816459 is a deficient number, since it is larger than the sum of its proper divisors (8640178645).

68183816459 is a wasteful number, since it uses less digits than its factorization.

68183816459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1602238.

The product of its digits is 9953280, while the sum is 59.

The spelling of 68183816459 in words is "sixty-eight billion, one hundred eighty-three million, eight hundred sixteen thousand, four hundred fifty-nine".