240505651843 has 2 divisors, whose sum is σ = 240505651844. Its totient is φ = 240505651842.

The previous prime is 240505651753. The next prime is 240505651853. The reversal of 240505651843 is 348156505042.

240505651843 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240505651843 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 240505651843.

It is not a weakly prime, because it can be changed into another prime (240505651853) 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, 120252825921 + 120252825922.

It is an arithmetic number, because the mean of its divisors is an integer number (120252825922).

Almost surely, 2^240505651843 is an apocalyptic number.

240505651843 is a deficient number, since it is larger than the sum of its proper divisors (1).

240505651843 is an equidigital number, since it uses as much as digits as its factorization.

240505651843 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576000, while the sum is 43.

The spelling of 240505651843 in words is "two hundred forty billion, five hundred five million, six hundred fifty-one thousand, eight hundred forty-three".