68322577643 has 2 divisors, whose sum is σ = 68322577644. Its totient is φ = 68322577642.

The previous prime is 68322577621. The next prime is 68322577663. The reversal of 68322577643 is 34677522386.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68322577643 - 2¹⁶ = 68322512107 is a prime.

It is not a weakly prime, because it can be changed into another prime (68322577663) by changing a digit.

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 as a sum of consecutive naturals, namely, 34161288821 + 34161288822.

It is an arithmetic number, because the mean of its divisors is an integer number (34161288822).

Almost surely, 2^68322577643 is an apocalyptic number.

68322577643 is a deficient number, since it is larger than the sum of its proper divisors (1).

68322577643 is an equidigital number, since it uses as much as digits as its factorization.

68322577643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10160640, while the sum is 53.

The spelling of 68322577643 in words is "sixty-eight billion, three hundred twenty-two million, five hundred seventy-seven thousand, six hundred forty-three".