83563919899 has 2 divisors, whose sum is σ = 83563919900. Its totient is φ = 83563919898.

The previous prime is 83563919851. The next prime is 83563919909. The reversal of 83563919899 is 99891936538.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 83563919899 - 2¹¹ = 83563917851 is a prime.

It is not a weakly prime, because it can be changed into another prime (83563919809) 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, 41781959949 + 41781959950.

It is an arithmetic number, because the mean of its divisors is an integer number (41781959950).

Almost surely, 2^83563919899 is an apocalyptic number.

83563919899 is a deficient number, since it is larger than the sum of its proper divisors (1).

83563919899 is an equidigital number, since it uses as much as digits as its factorization.

83563919899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 113374080, while the sum is 70.

The spelling of 83563919899 in words is "eighty-three billion, five hundred sixty-three million, nine hundred nineteen thousand, eight hundred ninety-nine".