6366442673 has 2 divisors, whose sum is σ = 6366442674. Its totient is φ = 6366442672.

The previous prime is 6366442661. The next prime is 6366442699. The reversal of 6366442673 is 3762446636.

6366442673 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6354002944 + 12439729 = 79712^2 + 3527^2 .

It is a cyclic number.

It is not a de Polignac number, because 6366442673 - 2⁶ = 6366442609 is a prime.

It is not a weakly prime, because it can be changed into another prime (6366442273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3183221336 + 3183221337.

It is an arithmetic number, because the mean of its divisors is an integer number (3183221337).

Almost surely, 2^6366442673 is an apocalyptic number.

It is an amenable number.

6366442673 is a deficient number, since it is larger than the sum of its proper divisors (1).

6366442673 is an equidigital number, since it uses as much as digits as its factorization.

6366442673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2612736, while the sum is 47.

The square root of 6366442673 is about 79789.9910577762. The cubic root of 6366442673 is about 1853.3848596390.

The spelling of 6366442673 in words is "six billion, three hundred sixty-six million, four hundred forty-two thousand, six hundred seventy-three".