43281925369 has 2 divisors, whose sum is σ = 43281925370. Its totient is φ = 43281925368.

The previous prime is 43281925327. The next prime is 43281925417. The reversal of 43281925369 is 96352918234.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33184087225 + 10097838144 = 182165^2 + 100488^2 .

It is a cyclic number.

It is not a de Polignac number, because 43281925369 - 2⁹ = 43281924857 is a prime.

It is a super-3 number, since 3×43281925369³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (43281925969) 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, 21640962684 + 21640962685.

It is an arithmetic number, because the mean of its divisors is an integer number (21640962685).

Almost surely, 2^43281925369 is an apocalyptic number.

It is an amenable number.

43281925369 is a deficient number, since it is larger than the sum of its proper divisors (1).

43281925369 is an equidigital number, since it uses as much as digits as its factorization.

43281925369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2799360, while the sum is 52.

The spelling of 43281925369 in words is "forty-three billion, two hundred eighty-one million, nine hundred twenty-five thousand, three hundred sixty-nine".