38281144453 has 2 divisors, whose sum is σ = 38281144454. Its totient is φ = 38281144452.

The previous prime is 38281144399. The next prime is 38281144477. The reversal of 38281144453 is 35444118283.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37009294884 + 1271849569 = 192378^2 + 35663^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38281144453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38281144483) 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, 19140572226 + 19140572227.

It is an arithmetic number, because the mean of its divisors is an integer number (19140572227).

Almost surely, 2^38281144453 is an apocalyptic number.

It is an amenable number.

38281144453 is a deficient number, since it is larger than the sum of its proper divisors (1).

38281144453 is an equidigital number, since it uses as much as digits as its factorization.

38281144453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 368640, while the sum is 43.

The spelling of 38281144453 in words is "thirty-eight billion, two hundred eighty-one million, one hundred forty-four thousand, four hundred fifty-three".