68305250953 has 2 divisors, whose sum is σ = 68305250954. Its totient is φ = 68305250952.

The previous prime is 68305250843. The next prime is 68305251037. The reversal of 68305250953 is 35905250386.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56621154304 + 11684096649 = 237952^2 + 108093^2 .

It is a cyclic number.

It is not a de Polignac number, because 68305250953 - 2²⁹ = 67768380041 is a prime.

It is not a weakly prime, because it can be changed into another prime (68305550953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34152625476 + 34152625477.

It is an arithmetic number, because the mean of its divisors is an integer number (34152625477).

Almost surely, 2^68305250953 is an apocalyptic number.

It is an amenable number.

68305250953 is a deficient number, since it is larger than the sum of its proper divisors (1).

68305250953 is an equidigital number, since it uses as much as digits as its factorization.

68305250953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972000, while the sum is 46.

The spelling of 68305250953 in words is "sixty-eight billion, three hundred five million, two hundred fifty thousand, nine hundred fifty-three".