438073275769 has 2 divisors, whose sum is σ = 438073275770. Its totient is φ = 438073275768.

The previous prime is 438073275733. The next prime is 438073275793. The reversal of 438073275769 is 967572370834.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 394710627600 + 43362648169 = 628260^2 + 208237^2 .

It is a cyclic number.

It is not a de Polignac number, because 438073275769 - 2⁹ = 438073275257 is a prime.

It is a super-2 number, since 2×438073275769² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (438073275799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219036637884 + 219036637885.

It is an arithmetic number, because the mean of its divisors is an integer number (219036637885).

Almost surely, 2^438073275769 is an apocalyptic number.

It is an amenable number.

438073275769 is a deficient number, since it is larger than the sum of its proper divisors (1).

438073275769 is an equidigital number, since it uses as much as digits as its factorization.

438073275769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 53343360, while the sum is 61.

The spelling of 438073275769 in words is "four hundred thirty-eight billion, seventy-three million, two hundred seventy-five thousand, seven hundred sixty-nine".