668832822863 has 2 divisors, whose sum is σ = 668832822864. Its totient is φ = 668832822862.

The previous prime is 668832822751. The next prime is 668832822869. The reversal of 668832822863 is 368228238866.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 668832822863 - 2³⁸ = 393954915919 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 668832822796 and 668832822805.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (668832822869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 334416411431 + 334416411432.

It is an arithmetic number, because the mean of its divisors is an integer number (334416411432).

Almost surely, 2^668832822863 is an apocalyptic number.

668832822863 is a deficient number, since it is larger than the sum of its proper divisors (1).

668832822863 is an equidigital number, since it uses as much as digits as its factorization.

668832822863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63700992, while the sum is 62.

The spelling of 668832822863 in words is "six hundred sixty-eight billion, eight hundred thirty-two million, eight hundred twenty-two thousand, eight hundred sixty-three".