1426403318881 has 2 divisors, whose sum is σ = 1426403318882. Its totient is φ = 1426403318880.

The previous prime is 1426403318867. The next prime is 1426403318903. The reversal of 1426403318881 is 1888133046241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 804221542656 + 622181776225 = 896784^2 + 788785^2 .

It is a cyclic number.

It is not a de Polignac number, because 1426403318881 - 2³⁵ = 1392043580513 is a prime.

It is a super-2 number, since 2×1426403318881² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1426403318861) 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, 713201659440 + 713201659441.

It is an arithmetic number, because the mean of its divisors is an integer number (713201659441).

Almost surely, 2^{1426403318881} is an apocalyptic number.

It is an amenable number.

1426403318881 is a deficient number, since it is larger than the sum of its proper divisors (1).

1426403318881 is an equidigital number, since it uses as much as digits as its factorization.

1426403318881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 884736, while the sum is 49.

The spelling of 1426403318881 in words is "one trillion, four hundred twenty-six billion, four hundred three million, three hundred eighteen thousand, eight hundred eighty-one".