2042173855 has 16 divisors (see below), whose sum is σ = 2475396000. Its totient is φ = 1617251328.

The previous prime is 2042173813. The next prime is 2042173867. The reversal of 2042173855 is 5583712402.

It is a cyclic number.

It is not a de Polignac number, because 2042173855 - 2²⁹ = 1505302943 is a prime.

It is a super-2 number, since 2×2042173855² = 8340948108091122050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 581896 + ... + 585394.

It is an arithmetic number, because the mean of its divisors is an integer number (154712250).

Almost surely, 2^2042173855 is an apocalyptic number.

2042173855 is a deficient number, since it is larger than the sum of its proper divisors (433222145).

2042173855 is a wasteful number, since it uses less digits than its factorization.

2042173855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4650.

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 2042173855 is about 45190.4177342941. The cubic root of 2042173855 is about 1268.7154753562.

The spelling of 2042173855 in words is "two billion, forty-two million, one hundred seventy-three thousand, eight hundred fifty-five".