40605855867 has 12 divisors (see below), whose sum is σ = 58655797200. Its totient is φ = 27069234768.

The previous prime is 40605855859. The next prime is 40605855949. The reversal of 40605855867 is 76855850604.

40605855867 is a `hidden beast` number, since 4 + 0 + 6 + 0 + 58 + 5 + 586 + 7 = 666.

It is not a de Polignac number, because 40605855867 - 2³ = 40605855859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40605855817) 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 11 ways as a sum of consecutive naturals, for example, 102898 + ... + 302984.

It is an arithmetic number, because the mean of its divisors is an integer number (4887983100).

Almost surely, 2^40605855867 is an apocalyptic number.

40605855867 is a deficient number, since it is larger than the sum of its proper divisors (18049941333).

40605855867 is a wasteful number, since it uses less digits than its factorization.

40605855867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222642 (or 222639 counting only the distinct ones).

The product of its (nonzero) digits is 8064000, while the sum is 54.

The spelling of 40605855867 in words is "forty billion, six hundred five million, eight hundred fifty-five thousand, eight hundred sixty-seven".