41893902409 has 2 divisors, whose sum is σ = 41893902410. Its totient is φ = 41893902408.

The previous prime is 41893902361. The next prime is 41893902431. The reversal of 41893902409 is 90420939814.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41893902400 + 9 = 204680^2 + 3^2 .

It is a cyclic number.

It is not a de Polignac number, because 41893902409 - 2³³ = 33303967817 is a prime.

It is not a weakly prime, because it can be changed into another prime (41893902499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20946951204 + 20946951205.

It is an arithmetic number, because the mean of its divisors is an integer number (20946951205).

Almost surely, 2^41893902409 is an apocalyptic number.

It is an amenable number.

41893902409 is a deficient number, since it is larger than the sum of its proper divisors (1).

41893902409 is an equidigital number, since it uses as much as digits as its factorization.

41893902409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 559872, while the sum is 49.

The spelling of 41893902409 in words is "forty-one billion, eight hundred ninety-three million, nine hundred two thousand, four hundred nine".