240321317762989 has 2 divisors, whose sum is σ = 240321317762990. Its totient is φ = 240321317762988.

The previous prime is 240321317762941. The next prime is 240321317763071. The reversal of 240321317762989 is 989267713123042.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 221234537342025 + 19086780420964 = 14873955^2 + 4368842^2 .

It is a cyclic number.

It is not a de Polignac number, because 240321317762989 - 2⁷ = 240321317762861 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 240321317762989.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240321317762389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120160658881494 + 120160658881495.

It is an arithmetic number, because the mean of its divisors is an integer number (120160658881495).

Almost surely, 2^{240321317762989} is an apocalyptic number.

It is an amenable number.

240321317762989 is a deficient number, since it is larger than the sum of its proper divisors (1).

240321317762989 is an equidigital number, since it uses as much as digits as its factorization.

240321317762989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54867456, while the sum is 64.

The spelling of 240321317762989 in words is "two hundred forty trillion, three hundred twenty-one billion, three hundred seventeen million, seven hundred sixty-two thousand, nine hundred eighty-nine".