2438728220653 has 2 divisors, whose sum is σ = 2438728220654. Its totient is φ = 2438728220652.

The previous prime is 2438728220543. The next prime is 2438728220671. The reversal of 2438728220653 is 3560228278342.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2411305854244 + 27422366409 = 1552838^2 + 165597^2 .

It is a cyclic number.

It is not a de Polignac number, because 2438728220653 - 2³³ = 2430138286061 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2438728220653.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2438728220953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1219364110326 + 1219364110327.

It is an arithmetic number, because the mean of its divisors is an integer number (1219364110327).

Almost surely, 2^{2438728220653} is an apocalyptic number.

It is an amenable number.

2438728220653 is a deficient number, since it is larger than the sum of its proper divisors (1).

2438728220653 is an equidigital number, since it uses as much as digits as its factorization.

2438728220653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7741440, while the sum is 52.

The spelling of 2438728220653 in words is "two trillion, four hundred thirty-eight billion, seven hundred twenty-eight million, two hundred twenty thousand, six hundred fifty-three".