38130257449 has 2 divisors, whose sum is σ = 38130257450. Its totient is φ = 38130257448.

The previous prime is 38130257413. The next prime is 38130257467. The reversal of 38130257449 is 94475203183.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37584801424 + 545456025 = 193868^2 + 23355^2 .

It is a cyclic number.

It is not a de Polignac number, because 38130257449 - 2⁹ = 38130256937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38130257399 and 38130257408.

It is not a weakly prime, because it can be changed into another prime (38130257479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19065128724 + 19065128725.

It is an arithmetic number, because the mean of its divisors is an integer number (19065128725).

Almost surely, 2^38130257449 is an apocalyptic number.

It is an amenable number.

38130257449 is a deficient number, since it is larger than the sum of its proper divisors (1).

38130257449 is an equidigital number, since it uses as much as digits as its factorization.

38130257449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 725760, while the sum is 46.

The spelling of 38130257449 in words is "thirty-eight billion, one hundred thirty million, two hundred fifty-seven thousand, four hundred forty-nine".