1426195811 has 2 divisors, whose sum is σ = 1426195812. Its totient is φ = 1426195810.

The previous prime is 1426195789. The next prime is 1426195853. The reversal of 1426195811 is 1185916241.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (1185916241) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1426195811 is a prime.

It is not a weakly prime, because it can be changed into another prime (1426195861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 713097905 + 713097906.

It is an arithmetic number, because the mean of its divisors is an integer number (713097906).

Almost surely, 2^1426195811 is an apocalyptic number.

1426195811 is a deficient number, since it is larger than the sum of its proper divisors (1).

1426195811 is an equidigital number, since it uses as much as digits as its factorization.

1426195811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 38.

The square root of 1426195811 is about 37765.0077585058. The cubic root of 1426195811 is about 1125.6232427461.

The spelling of 1426195811 in words is "one billion, four hundred twenty-six million, one hundred ninety-five thousand, eight hundred eleven".