41716806781 has 16 divisors (see below), whose sum is σ = 45693774000. Its totient is φ = 37854885888.

The previous prime is 41716806779. The next prime is 41716806797. The reversal of 41716806781 is 18760861714.

It can be written as a sum of positive squares in 8 ways, for example, as 18586959556 + 23129847225 = 136334^2 + 152085^2 .

It is a cyclic number.

It is not a de Polignac number, because 41716806781 - 2¹ = 41716806779 is a prime.

It is a super-2 number, since 2×41716806781² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41716806181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76875 + ... + 298903.

It is an arithmetic number, because the mean of its divisors is an integer number (2855860875).

Almost surely, 2^41716806781 is an apocalyptic number.

It is an amenable number.

41716806781 is a deficient number, since it is larger than the sum of its proper divisors (3976967219).

41716806781 is a wasteful number, since it uses less digits than its factorization.

41716806781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222288.

The product of its (nonzero) digits is 451584, while the sum is 49.

The spelling of 41716806781 in words is "forty-one billion, seven hundred sixteen million, eight hundred six thousand, seven hundred eighty-one".