2117658332 has 12 divisors (see below), whose sum is σ = 3706234056. Its totient is φ = 1058734320.

The previous prime is 2117658311. The next prime is 2117658337. The reversal of 2117658332 is 2338567112.

It is a super-2 number, since 2×2117658332² = 8968953622178044448, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2117658337) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 57203 + ... + 86645.

It is an arithmetic number, because the mean of its divisors is an integer number (308852838).

Almost surely, 2^2117658332 is an apocalyptic number.

It is an amenable number.

2117658332 is a deficient number, since it is larger than the sum of its proper divisors (1588575724).

2117658332 is a wasteful number, since it uses less digits than its factorization.

2117658332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47428 (or 47426 counting only the distinct ones).

The product of its digits is 60480, while the sum is 38.

The square root of 2117658332 is about 46018.0218175445. The cubic root of 2117658332 is about 1284.1584990494.

The spelling of 2117658332 in words is "two billion, one hundred seventeen million, six hundred fifty-eight thousand, three hundred thirty-two".