4204206265991 has 2 divisors, whose sum is σ = 4204206265992. Its totient is φ = 4204206265990.

The previous prime is 4204206265841. The next prime is 4204206266033. The reversal of 4204206265991 is 1995626024024.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4204206265991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4204206265291) 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, 2102103132995 + 2102103132996.

It is an arithmetic number, because the mean of its divisors is an integer number (2102103132996).

Almost surely, 2^{4204206265991} is an apocalyptic number.

4204206265991 is a deficient number, since it is larger than the sum of its proper divisors (1).

4204206265991 is an equidigital number, since it uses as much as digits as its factorization.

4204206265991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1866240, while the sum is 50.

The spelling of 4204206265991 in words is "four trillion, two hundred four billion, two hundred six million, two hundred sixty-five thousand, nine hundred ninety-one".