845126663 has 2 divisors, whose sum is σ = 845126664. Its totient is φ = 845126662.

The previous prime is 845126641. The next prime is 845126699. The reversal of 845126663 is 366621548.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 845126663 - 2¹² = 845122567 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 845126663.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (845126263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 422563331 + 422563332.

It is an arithmetic number, because the mean of its divisors is an integer number (422563332).

Almost surely, 2^845126663 is an apocalyptic number.

845126663 is a deficient number, since it is larger than the sum of its proper divisors (1).

845126663 is an equidigital number, since it uses as much as digits as its factorization.

845126663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 41.

The square root of 845126663 is about 29071.0622956919. The cubic root of 845126663 is about 945.4544301520.

The spelling of 845126663 in words is "eight hundred forty-five million, one hundred twenty-six thousand, six hundred sixty-three".