438567822074881 has 2 divisors, whose sum is σ = 438567822074882. Its totient is φ = 438567822074880.

The previous prime is 438567822074771. The next prime is 438567822074891. The reversal of 438567822074881 is 188470228765834.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 307240599758400 + 131327222316481 = 17528280^2 + 11459809^2 .

It is a cyclic number.

It is not a de Polignac number, because 438567822074881 - 2¹⁵ = 438567822042113 is a prime.

It is a super-2 number, since 2×438567822074881² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (438567822074891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219283911037440 + 219283911037441.

It is an arithmetic number, because the mean of its divisors is an integer number (219283911037441).

Almost surely, 2^{438567822074881} is an apocalyptic number.

It is an amenable number.

438567822074881 is a deficient number, since it is larger than the sum of its proper divisors (1).

438567822074881 is an equidigital number, since it uses as much as digits as its factorization.

438567822074881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1156055040, while the sum is 73.

The spelling of 438567822074881 in words is "four hundred thirty-eight trillion, five hundred sixty-seven billion, eight hundred twenty-two million, seventy-four thousand, eight hundred eighty-one".