40942055858 has 18 divisors (see below), whose sum is σ = 67508827743. Its totient is φ = 18608594620.

The previous prime is 40942055801. The next prime is 40942055873. The reversal of 40942055858 is 85855024904.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 20471027929 + 20471027929 = 143077^2 + 143077^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=143077.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3141191 + ... + 3154197.

Almost surely, 2^40942055858 is an apocalyptic number.

40942055858 is a deficient number, since it is larger than the sum of its proper divisors (26566771885).

40942055858 is an frugal number, since it uses more digits than its factorization.

40942055858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26038 (or 13020 counting only the distinct ones).

The product of its (nonzero) digits is 2304000, while the sum is 50.

Multiplying 40942055858 by its sum of digits (50), we get a square (2047102792900 = 1430770²).

The spelling of 40942055858 in words is "forty billion, nine hundred forty-two million, fifty-five thousand, eight hundred fifty-eight".