2668428404203 has 2 divisors, whose sum is σ = 2668428404204. Its totient is φ = 2668428404202.

The previous prime is 2668428404197. The next prime is 2668428404207. The reversal of 2668428404203 is 3024048248662.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2668428404203 - 2⁵ = 2668428404171 is a prime.

It is not a weakly prime, because it can be changed into another prime (2668428404207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1334214202101 + 1334214202102.

It is an arithmetic number, because the mean of its divisors is an integer number (1334214202102).

Almost surely, 2^{2668428404203} is an apocalyptic number.

2668428404203 is a deficient number, since it is larger than the sum of its proper divisors (1).

2668428404203 is an equidigital number, since it uses as much as digits as its factorization.

2668428404203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3538944, while the sum is 49.

The spelling of 2668428404203 in words is "two trillion, six hundred sixty-eight billion, four hundred twenty-eight million, four hundred four thousand, two hundred three".