40027854099891 has 16 divisors (see below), whose sum is σ = 60994961871104. Its totient is φ = 22873008269664.

The previous prime is 40027854099811. The next prime is 40027854099967. The reversal of 40027854099891 is 19899045872004.

40027854099891 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40027854099891 - 2³³ = 40019264165299 is a prime.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40027854099811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8761620 + ... + 12522846.

It is an arithmetic number, because the mean of its divisors is an integer number (3812185116944).

Almost surely, 2^{40027854099891} is an apocalyptic number.

40027854099891 is a deficient number, since it is larger than the sum of its proper divisors (20967107771213).

40027854099891 is a wasteful number, since it uses less digits than its factorization.

40027854099891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4268010.

The product of its (nonzero) digits is 52254720, while the sum is 66.

The spelling of 40027854099891 in words is "forty trillion, twenty-seven billion, eight hundred fifty-four million, ninety-nine thousand, eight hundred ninety-one".