68508763 has 2 divisors, whose sum is σ = 68508764. Its totient is φ = 68508762.

The previous prime is 68508733. The next prime is 68508767. The reversal of 68508763 is 36780586.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68508763 - 2⁵ = 68508731 is a prime.

It is not a weakly prime, because it can be changed into another prime (68508767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34254381 + 34254382.

It is an arithmetic number, because the mean of its divisors is an integer number (34254382).

Almost surely, 2^68508763 is an apocalyptic number.

68508763 is a deficient number, since it is larger than the sum of its proper divisors (1).

68508763 is an equidigital number, since it uses as much as digits as its factorization.

68508763 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 68508763 is about 8277.0020538840. The cubic root of 68508763 is about 409.1809207890.

The spelling of 68508763 in words is "sixty-eight million, five hundred eight thousand, seven hundred sixty-three".