381450218759 has 2 divisors, whose sum is σ = 381450218760. Its totient is φ = 381450218758.

The previous prime is 381450218741. The next prime is 381450218791. The reversal of 381450218759 is 957812054183.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 381450218759 - 2²⁸ = 381181783303 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 381450218759.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (381450218729) 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, 190725109379 + 190725109380.

It is an arithmetic number, because the mean of its divisors is an integer number (190725109380).

Almost surely, 2^381450218759 is an apocalyptic number.

381450218759 is a deficient number, since it is larger than the sum of its proper divisors (1).

381450218759 is an equidigital number, since it uses as much as digits as its factorization.

381450218759 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2419200, while the sum is 53.

The spelling of 381450218759 in words is "three hundred eighty-one billion, four hundred fifty million, two hundred eighteen thousand, seven hundred fifty-nine".