41316851781 has 6 divisors (see below), whose sum is σ = 59679897030. Its totient is φ = 27544567848.

The previous prime is 41316851767. The next prime is 41316851789. The reversal of 41316851781 is 18715861314.

41316851781 is a `hidden beast` number, since 41 + 3 + 16 + 8 + 517 + 81 = 666.

It can be written as a sum of positive squares in only one way, i.e., 22865976225 + 18450875556 = 151215^2 + 135834^2 .

It is not a de Polignac number, because 41316851781 - 2²¹ = 41314754629 is a prime.

It is a super-2 number, since 2×41316851781² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41316851789) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2295380646 + ... + 2295380663.

It is an arithmetic number, because the mean of its divisors is an integer number (9946649505).

Almost surely, 2^41316851781 is an apocalyptic number.

It is an amenable number.

41316851781 is a deficient number, since it is larger than the sum of its proper divisors (18363045249).

41316851781 is a wasteful number, since it uses less digits than its factorization.

41316851781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4590761315 (or 4590761312 counting only the distinct ones).

The product of its digits is 161280, while the sum is 45.

The spelling of 41316851781 in words is "forty-one billion, three hundred sixteen million, eight hundred fifty-one thousand, seven hundred eighty-one".