243090650863 has 2 divisors, whose sum is σ = 243090650864. Its totient is φ = 243090650862.

The previous prime is 243090650861. The next prime is 243090650903. The reversal of 243090650863 is 368056090342.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 243090650863 - 2¹ = 243090650861 is a prime.

Together with 243090650861, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243090650861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121545325431 + 121545325432.

It is an arithmetic number, because the mean of its divisors is an integer number (121545325432).

Almost surely, 2^243090650863 is an apocalyptic number.

243090650863 is a deficient number, since it is larger than the sum of its proper divisors (1).

243090650863 is an equidigital number, since it uses as much as digits as its factorization.

243090650863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 933120, while the sum is 46.

The spelling of 243090650863 in words is "two hundred forty-three billion, ninety million, six hundred fifty thousand, eight hundred sixty-three".