2164214872 has 32 divisors (see below), whose sum is σ = 4163302800. Its totient is φ = 1054326784.

The previous prime is 2164214861. The next prime is 2164214881. The reversal of 2164214872 is 2784124612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33048 + ... + 73624.

Almost surely, 2^2164214872 is an apocalyptic number.

It is an amenable number.

2164214872 is a deficient number, since it is larger than the sum of its proper divisors (1999087928).

2164214872 is a wasteful number, since it uses less digits than its factorization.

2164214872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40755 (or 40751 counting only the distinct ones).

The product of its digits is 43008, while the sum is 37.

The square root of 2164214872 is about 46521.1228583318. The cubic root of 2164214872 is about 1293.5010701661.

The spelling of 2164214872 in words is "two billion, one hundred sixty-four million, two hundred fourteen thousand, eight hundred seventy-two".