40811285871 has 6 divisors (see below), whose sum is σ = 58949635160. Its totient is φ = 27207523908.

The previous prime is 40811285863. The next prime is 40811285873. The reversal of 40811285871 is 17858211804.

40811285871 is a `hidden beast` number, since 40 + 8 + 1 + 1 + 28 + 587 + 1 = 666.

It is not a de Polignac number, because 40811285871 - 2³ = 40811285863 is a prime.

It is a super-2 number, since 2×40811285871² (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 (40811285873) 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 5 ways as a sum of consecutive naturals, for example, 2267293651 + ... + 2267293668.

Almost surely, 2^40811285871 is an apocalyptic number.

40811285871 is a deficient number, since it is larger than the sum of its proper divisors (18138349289).

40811285871 is a wasteful number, since it uses less digits than its factorization.

40811285871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4534587325 (or 4534587322 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 45.

The spelling of 40811285871 in words is "forty billion, eight hundred eleven million, two hundred eighty-five thousand, eight hundred seventy-one".