438883660819 has 2 divisors, whose sum is σ = 438883660820. Its totient is φ = 438883660818.

The previous prime is 438883660777. The next prime is 438883660823. The reversal of 438883660819 is 918066388834.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-438883660819 is a prime.

It is a super-2 number, since 2×438883660819² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (438883660829) 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, 219441830409 + 219441830410.

It is an arithmetic number, because the mean of its divisors is an integer number (219441830410).

Almost surely, 2^438883660819 is an apocalyptic number.

438883660819 is a deficient number, since it is larger than the sum of its proper divisors (1).

438883660819 is an equidigital number, since it uses as much as digits as its factorization.

438883660819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47775744, while the sum is 64.

The spelling of 438883660819 in words is "four hundred thirty-eight billion, eight hundred eighty-three million, six hundred sixty thousand, eight hundred nineteen".