68322510889 has 2 divisors, whose sum is σ = 68322510890. Its totient is φ = 68322510888.

The previous prime is 68322510863. The next prime is 68322510899. The reversal of 68322510889 is 98801522386.

68322510889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51162820864 + 17159690025 = 226192^2 + 130995^2 .

It is a cyclic number.

It is not a de Polignac number, because 68322510889 - 2⁵ = 68322510857 is a prime.

It is not a weakly prime, because it can be changed into another prime (68322510899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34161255444 + 34161255445.

It is an arithmetic number, because the mean of its divisors is an integer number (34161255445).

Almost surely, 2^68322510889 is an apocalyptic number.

It is an amenable number.

68322510889 is a deficient number, since it is larger than the sum of its proper divisors (1).

68322510889 is an equidigital number, since it uses as much as digits as its factorization.

68322510889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1658880, while the sum is 52.

The spelling of 68322510889 in words is "sixty-eight billion, three hundred twenty-two million, five hundred ten thousand, eight hundred eighty-nine".