438808219093 has 2 divisors, whose sum is σ = 438808219094. Its totient is φ = 438808219092.

The previous prime is 438808219063. The next prime is 438808219097. The reversal of 438808219093 is 390912808834.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 264353307409 + 174454911684 = 514153^2 + 417678^2 .

It is a cyclic number.

It is not a de Polignac number, because 438808219093 - 2¹⁷ = 438808088021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (438808219097) 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, 219404109546 + 219404109547.

It is an arithmetic number, because the mean of its divisors is an integer number (219404109547).

Almost surely, 2^438808219093 is an apocalyptic number.

It is an amenable number.

438808219093 is a deficient number, since it is larger than the sum of its proper divisors (1).

438808219093 is an equidigital number, since it uses as much as digits as its factorization.

438808219093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2985984, while the sum is 55.

The spelling of 438808219093 in words is "four hundred thirty-eight billion, eight hundred eight million, two hundred nineteen thousand, ninety-three".