41909187493 has 2 divisors, whose sum is σ = 41909187494. Its totient is φ = 41909187492.

The previous prime is 41909187479. The next prime is 41909187497. The reversal of 41909187493 is 39478190914.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33204857284 + 8704330209 = 182222^2 + 93297^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-41909187493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41909187497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20954593746 + 20954593747.

It is an arithmetic number, because the mean of its divisors is an integer number (20954593747).

Almost surely, 2^41909187493 is an apocalyptic number.

It is an amenable number.

41909187493 is a deficient number, since it is larger than the sum of its proper divisors (1).

41909187493 is an equidigital number, since it uses as much as digits as its factorization.

41909187493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1959552, while the sum is 55.

The spelling of 41909187493 in words is "forty-one billion, nine hundred nine million, one hundred eighty-seven thousand, four hundred ninety-three".