8426666203 has 2 divisors, whose sum is σ = 8426666204. Its totient is φ = 8426666202.

The previous prime is 8426666177. The next prime is 8426666249. The reversal of 8426666203 is 3026666248.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8426666203 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8426666203.

It is not a weakly prime, because it can be changed into another prime (8426666263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4213333101 + 4213333102.

It is an arithmetic number, because the mean of its divisors is an integer number (4213333102).

Almost surely, 2^8426666203 is an apocalyptic number.

8426666203 is a deficient number, since it is larger than the sum of its proper divisors (1).

8426666203 is an equidigital number, since it uses as much as digits as its factorization.

8426666203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 497664, while the sum is 43.

The square root of 8426666203 is about 91796.8746908085. The cubic root of 8426666203 is about 2034.9415074133.

The spelling of 8426666203 in words is "eight billion, four hundred twenty-six million, six hundred sixty-six thousand, two hundred three".