2146426889 has 2 divisors, whose sum is σ = 2146426890. Its totient is φ = 2146426888.

The previous prime is 2146426883. The next prime is 2146426901. The reversal of 2146426889 is 9886246412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1822606864 + 323820025 = 42692^2 + 17995^2 .

It is a cyclic number.

It is not a de Polignac number, because 2146426889 - 2²⁴ = 2129649673 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2146426883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1073213444 + 1073213445.

It is an arithmetic number, because the mean of its divisors is an integer number (1073213445).

Almost surely, 2^2146426889 is an apocalyptic number.

It is an amenable number.

2146426889 is a deficient number, since it is larger than the sum of its proper divisors (1).

2146426889 is an equidigital number, since it uses as much as digits as its factorization.

2146426889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1327104, while the sum is 50.

The square root of 2146426889 is about 46329.5466090485. The cubic root of 2146426889 is about 1289.9474948083.

The spelling of 2146426889 in words is "two billion, one hundred forty-six million, four hundred twenty-six thousand, eight hundred eighty-nine".