40105808216487 has 24 divisors (see below), whose sum is σ = 62387235533168. Its totient is φ = 24680330121600.

The previous prime is 40105808216471. The next prime is 40105808216497. The reversal of 40105808216487 is 78461280850104.

40105808216487 is a `hidden beast` number, since 4 + 0 + 1 + 0 + 5 + 80 + 82 + 1 + 6 + 487 = 666.

It is not a de Polignac number, because 40105808216487 - 2⁴ = 40105808216471 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40105808216497) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17447187 + ... + 19611627.

Almost surely, 2^{40105808216487} is an apocalyptic number.

40105808216487 is a deficient number, since it is larger than the sum of its proper divisors (22281427316681).

40105808216487 is a wasteful number, since it uses less digits than its factorization.

40105808216487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2322831 (or 2322828 counting only the distinct ones).

The product of its (nonzero) digits is 3440640, while the sum is 54.

The spelling of 40105808216487 in words is "forty trillion, one hundred five billion, eight hundred eight million, two hundred sixteen thousand, four hundred eighty-seven".