41027717809 has 9 divisors (see below), whose sum is σ = 44429315169. Its totient is φ = 37869308880.

The previous prime is 41027717807. The next prime is 41027717821. The reversal of 41027717809 is 90871772014.

The square root of 41027717809 is 202553.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 12693402225 + 28334315584 = 112665^2 + 168328^2 .

It is not a de Polignac number, because 41027717809 - 2¹ = 41027717807 is a prime.

It is a super-2 number, since 2×41027717809² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41027717807) 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 in 8 ways as a sum of consecutive naturals, for example, 2625399 + ... + 2640979.

Almost surely, 2^41027717809 is an apocalyptic number.

41027717809 is the 202553-rd square number.

41027717809 is the 101277-th centered octagonal number.

It is an amenable number.

41027717809 is a deficient number, since it is larger than the sum of its proper divisors (3401597360).

41027717809 is an frugal number, since it uses more digits than its factorization.

41027717809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31188 (or 15594 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 46.

The spelling of 41027717809 in words is "forty-one billion, twenty-seven million, seven hundred seventeen thousand, eight hundred nine".