2117491570 has 32 divisors (see below), whose sum is σ = 3940409088. Its totient is φ = 818754048.

The previous prime is 2117491561. The next prime is 2117491603. The reversal of 2117491570 is 751947112.

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, 16327 + ... + 67093.

It is an arithmetic number, because the mean of its divisors is an integer number (123137784).

Almost surely, 2^2117491570 is an apocalyptic number.

2117491570 is a deficient number, since it is larger than the sum of its proper divisors (1822917518).

2117491570 is a wasteful number, since it uses less digits than its factorization.

2117491570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50914.

The product of its (nonzero) digits is 17640, while the sum is 37.

The square root of 2117491570 is about 46016.2098613087. The cubic root of 2117491570 is about 1284.1247897303.

The spelling of 2117491570 in words is "two billion, one hundred seventeen million, four hundred ninety-one thousand, five hundred seventy".