19025772481 has 2 divisors, whose sum is σ = 19025772482. Its totient is φ = 19025772480.

The previous prime is 19025772463. The next prime is 19025772497. The reversal of 19025772481 is 18427752091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16252170256 + 2773602225 = 127484^2 + 52665^2 .

It is a cyclic number.

It is not a de Polignac number, because 19025772481 - 2²³ = 19017383873 is a prime.

It is a super-2 number, since 2×19025772481² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (19025772401) 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, 9512886240 + 9512886241.

It is an arithmetic number, because the mean of its divisors is an integer number (9512886241).

Almost surely, 2^19025772481 is an apocalyptic number.

It is an amenable number.

19025772481 is a deficient number, since it is larger than the sum of its proper divisors (1).

19025772481 is an equidigital number, since it uses as much as digits as its factorization.

19025772481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 282240, while the sum is 46.

The spelling of 19025772481 in words is "nineteen billion, twenty-five million, seven hundred seventy-two thousand, four hundred eighty-one".