40863105081 has 12 divisors (see below), whose sum is σ = 61059812580. Its totient is φ = 26302688160.

The previous prime is 40863105053. The next prime is 40863105137. The reversal of 40863105081 is 18050136804.

40863105081 is a `hidden beast` number, since 40 + 86 + 31 + 0 + 508 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 30674019600 + 10189085481 = 175140^2 + 100941^2 .

It is not a de Polignac number, because 40863105081 - 2¹¹ = 40863103033 is a prime.

It is a super-2 number, since 2×40863105081² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40863105281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78281550 + ... + 78282071.

It is an arithmetic number, because the mean of its divisors is an integer number (5088317715).

Almost surely, 2^40863105081 is an apocalyptic number.

It is an amenable number.

40863105081 is a deficient number, since it is larger than the sum of its proper divisors (20196707499).

40863105081 is a wasteful number, since it uses less digits than its factorization.

40863105081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156563656 (or 156563653 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The spelling of 40863105081 in words is "forty billion, eight hundred sixty-three million, one hundred five thousand, eighty-one".