19926368863 has 2 divisors, whose sum is σ = 19926368864. Its totient is φ = 19926368862.

The previous prime is 19926368857. The next prime is 19926368909. The reversal of 19926368863 is 36886362991.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 19926368863 - 2¹⁷ = 19926237791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19926368663) 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, 9963184431 + 9963184432.

It is an arithmetic number, because the mean of its divisors is an integer number (9963184432).

Almost surely, 2^19926368863 is an apocalyptic number.

19926368863 is a deficient number, since it is larger than the sum of its proper divisors (1).

19926368863 is an equidigital number, since it uses as much as digits as its factorization.

19926368863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20155392, while the sum is 61.

The spelling of 19926368863 in words is "nineteen billion, nine hundred twenty-six million, three hundred sixty-eight thousand, eight hundred sixty-three".