2135968459 has 2 divisors, whose sum is σ = 2135968460. Its totient is φ = 2135968458.

The previous prime is 2135968453. The next prime is 2135968477. The reversal of 2135968459 is 9548695312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2135968459 - 2⁵ = 2135968427 is a prime.

It is a super-2 number, since 2×2135968459² = 9124722515685669362, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2135968453) 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, 1067984229 + 1067984230.

It is an arithmetic number, because the mean of its divisors is an integer number (1067984230).

Almost surely, 2^2135968459 is an apocalyptic number.

2135968459 is a deficient number, since it is larger than the sum of its proper divisors (1).

2135968459 is an equidigital number, since it uses as much as digits as its factorization.

2135968459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2332800, while the sum is 52.

The square root of 2135968459 is about 46216.5388037659. The cubic root of 2135968459 is about 1287.8490001070.

The spelling of 2135968459 in words is "two billion, one hundred thirty-five million, nine hundred sixty-eight thousand, four hundred fifty-nine".