2117837852 has 12 divisors (see below), whose sum is σ = 3991309896. Its totient is φ = 977463600.

The previous prime is 2117837809. The next prime is 2117837893. The reversal of 2117837852 is 2587387112.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 20363774 + ... + 20363877.

It is an arithmetic number, because the mean of its divisors is an integer number (332609158).

Almost surely, 2^2117837852 is an apocalyptic number.

It is an amenable number.

2117837852 is a deficient number, since it is larger than the sum of its proper divisors (1873472044).

2117837852 is a wasteful number, since it uses less digits than its factorization.

2117837852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40727668 (or 40727666 counting only the distinct ones).

The product of its digits is 188160, while the sum is 44.

The square root of 2117837852 is about 46019.9723163759. The cubic root of 2117837852 is about 1284.1947852964.

The spelling of 2117837852 in words is "two billion, one hundred seventeen million, eight hundred thirty-seven thousand, eight hundred fifty-two".