2355781459 has 2 divisors, whose sum is σ = 2355781460. Its totient is φ = 2355781458.

The previous prime is 2355781457. The next prime is 2355781523. The reversal of 2355781459 is 9541875532.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2355781459 - 2¹ = 2355781457 is a prime.

Together with 2355781457, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2355781457) 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, 1177890729 + 1177890730.

It is an arithmetic number, because the mean of its divisors is an integer number (1177890730).

Almost surely, 2^2355781459 is an apocalyptic number.

2355781459 is a deficient number, since it is larger than the sum of its proper divisors (1).

2355781459 is an equidigital number, since it uses as much as digits as its factorization.

2355781459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1512000, while the sum is 49.

The square root of 2355781459 is about 48536.3931395814. The cubic root of 2355781459 is about 1330.5922812881.

The spelling of 2355781459 in words is "two billion, three hundred fifty-five million, seven hundred eighty-one thousand, four hundred fifty-nine".