2117497072 has 20 divisors (see below), whose sum is σ = 4142485360. Its totient is φ = 1048468608.

The previous prime is 2117497069. The next prime is 2117497073. The reversal of 2117497072 is 2707947112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2117497073) by changing a digit.

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, 640797 + ... + 644092.

It is an arithmetic number, because the mean of its divisors is an integer number (207124268).

Almost surely, 2^2117497072 is an apocalyptic number.

It is an amenable number.

2117497072 is a deficient number, since it is larger than the sum of its proper divisors (2024988288).

2117497072 is a wasteful number, since it uses less digits than its factorization.

2117497072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1285000 (or 1284994 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 40.

The square root of 2117497072 is about 46016.2696445507. The cubic root of 2117497072 is about 1284.1259019344.

The spelling of 2117497072 in words is "two billion, one hundred seventeen million, four hundred ninety-seven thousand, seventy-two".