2164848947 has 16 divisors (see below), whose sum is σ = 2332779264. Its totient is φ = 2004912000.

The previous prime is 2164848937. The next prime is 2164848977. The reversal of 2164848947 is 7498484612.

It is a cyclic number.

It is not a de Polignac number, because 2164848947 - 2¹⁸ = 2164586803 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2164848937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54497 + ... + 85437.

It is an arithmetic number, because the mean of its divisors is an integer number (145798704).

Almost surely, 2^2164848947 is an apocalyptic number.

2164848947 is a deficient number, since it is larger than the sum of its proper divisors (167930317).

2164848947 is a wasteful number, since it uses less digits than its factorization.

2164848947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31070.

The product of its digits is 3096576, while the sum is 53.

The square root of 2164848947 is about 46527.9372742872. The cubic root of 2164848947 is about 1293.6273818086.

The spelling of 2164848947 in words is "two billion, one hundred sixty-four million, eight hundred forty-eight thousand, nine hundred forty-seven".