8466694993 has 2 divisors, whose sum is σ = 8466694994. Its totient is φ = 8466694992.

The previous prime is 8466694991. The next prime is 8466695033. The reversal of 8466694993 is 3994966648.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5805373249 + 2661321744 = 76193^2 + 51588^2 .

It is a cyclic number.

It is not a de Polignac number, because 8466694993 - 2¹ = 8466694991 is a prime.

Together with 8466694991, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (8466694991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4233347496 + 4233347497.

It is an arithmetic number, because the mean of its divisors is an integer number (4233347497).

Almost surely, 2^8466694993 is an apocalyptic number.

It is an amenable number.

8466694993 is a deficient number, since it is larger than the sum of its proper divisors (1).

8466694993 is an equidigital number, since it uses as much as digits as its factorization.

8466694993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60466176, while the sum is 64.

The square root of 8466694993 is about 92014.6455353712. The cubic root of 8466694993 is about 2038.1585806255.

The spelling of 8466694993 in words is "eight billion, four hundred sixty-six million, six hundred ninety-four thousand, nine hundred ninety-three".