438353222613497 has 2 divisors, whose sum is σ = 438353222613498. Its totient is φ = 438353222613496.

The previous prime is 438353222613443. The next prime is 438353222613511. The reversal of 438353222613497 is 794316222353834.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 438263296998121 + 89925615376 = 20934739^2 + 299876^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-438353222613497 is a prime.

It is not a weakly prime, because it can be changed into another prime (438353222613197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219176611306748 + 219176611306749.

It is an arithmetic number, because the mean of its divisors is an integer number (219176611306749).

Almost surely, 2^{438353222613497} is an apocalyptic number.

It is an amenable number.

438353222613497 is a deficient number, since it is larger than the sum of its proper divisors (1).

438353222613497 is an equidigital number, since it uses as much as digits as its factorization.

438353222613497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 156764160, while the sum is 62.

The spelling of 438353222613497 in words is "four hundred thirty-eight trillion, three hundred fifty-three billion, two hundred twenty-two million, six hundred thirteen thousand, four hundred ninety-seven".