438288068693 has 2 divisors, whose sum is σ = 438288068694. Its totient is φ = 438288068692.

The previous prime is 438288068663. The next prime is 438288068741. The reversal of 438288068693 is 396860882834.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 437579604004 + 708464689 = 661498^2 + 26617^2 .

It is a cyclic number.

It is not a de Polignac number, because 438288068693 - 2³⁴ = 421108199509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (438288068623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219144034346 + 219144034347.

It is an arithmetic number, because the mean of its divisors is an integer number (219144034347).

Almost surely, 2^438288068693 is an apocalyptic number.

It is an amenable number.

438288068693 is a deficient number, since it is larger than the sum of its proper divisors (1).

438288068693 is an equidigital number, since it uses as much as digits as its factorization.

438288068693 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 95551488, while the sum is 65.

The spelling of 438288068693 in words is "four hundred thirty-eight billion, two hundred eighty-eight million, sixty-eight thousand, six hundred ninety-three".