68182511539 has 2 divisors, whose sum is σ = 68182511540. Its totient is φ = 68182511538.

The previous prime is 68182511533. The next prime is 68182511543. The reversal of 68182511539 is 93511528186.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68182511539 - 2³³ = 59592576947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68182511492 and 68182511501.

It is not a weakly prime, because it can be changed into another prime (68182511533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34091255769 + 34091255770.

It is an arithmetic number, because the mean of its divisors is an integer number (34091255770).

Almost surely, 2^68182511539 is an apocalyptic number.

68182511539 is a deficient number, since it is larger than the sum of its proper divisors (1).

68182511539 is an equidigital number, since it uses as much as digits as its factorization.

68182511539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 518400, while the sum is 49.

The spelling of 68182511539 in words is "sixty-eight billion, one hundred eighty-two million, five hundred eleven thousand, five hundred thirty-nine".