2440245430673 has 2 divisors, whose sum is σ = 2440245430674. Its totient is φ = 2440245430672.

The previous prime is 2440245430639. The next prime is 2440245430681. The reversal of 2440245430673 is 3760345420442.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1623195758209 + 817049672464 = 1274047^2 + 903908^2 .

It is a cyclic number.

It is not a de Polignac number, because 2440245430673 - 2³² = 2435950463377 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2440245430613) 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, 1220122715336 + 1220122715337.

It is an arithmetic number, because the mean of its divisors is an integer number (1220122715337).

Almost surely, 2^{2440245430673} is an apocalyptic number.

It is an amenable number.

2440245430673 is a deficient number, since it is larger than the sum of its proper divisors (1).

2440245430673 is an equidigital number, since it uses as much as digits as its factorization.

2440245430673 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1935360, while the sum is 44.

The spelling of 2440245430673 in words is "two trillion, four hundred forty billion, two hundred forty-five million, four hundred thirty thousand, six hundred seventy-three".