2117269985 has 8 divisors (see below), whose sum is σ = 2541583680. Its totient is φ = 1693242864.

The previous prime is 2117269949. The next prime is 2117269993. The reversal of 2117269985 is 5899627112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2117269985 - 2²⁸ = 1848834529 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 55037 + ... + 85226.

It is an arithmetic number, because the mean of its divisors is an integer number (317697960).

Almost surely, 2^2117269985 is an apocalyptic number.

It is an amenable number.

2117269985 is a deficient number, since it is larger than the sum of its proper divisors (424313695).

2117269985 is a wasteful number, since it uses less digits than its factorization.

2117269985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143287.

The product of its digits is 544320, while the sum is 50.

The square root of 2117269985 is about 46013.8021141483. The cubic root of 2117269985 is about 1284.0799957358.

The spelling of 2117269985 in words is "two billion, one hundred seventeen million, two hundred sixty-nine thousand, nine hundred eighty-five".