40205045043 has 24 divisors (see below), whose sum is σ = 59706970128. Its totient is φ = 26051205312.

The previous prime is 40205045017. The next prime is 40205045087. The reversal of 40205045043 is 34054050204.

40205045043 is a `hidden beast` number, since 4 + 0 + 205 + 0 + 450 + 4 + 3 = 666.

It is not a de Polignac number, because 40205045043 - 2⁹ = 40205044531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40205044998 and 40205045016.

It is not an unprimeable number, because it can be changed into a prime (40205045003) 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 23 ways as a sum of consecutive naturals, for example, 251605 + ... + 379097.

It is an arithmetic number, because the mean of its divisors is an integer number (2487790422).

Almost surely, 2^40205045043 is an apocalyptic number.

40205045043 is a deficient number, since it is larger than the sum of its proper divisors (19501925085).

40205045043 is a wasteful number, since it uses less digits than its factorization.

40205045043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128483 (or 128480 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

Adding to 40205045043 its reverse (34054050204), we get a palindrome (74259095247).

The spelling of 40205045043 in words is "forty billion, two hundred five million, forty-five thousand, forty-three".