2146684873 has 4 divisors (see below), whose sum is σ = 2149638400. Its totient is φ = 2143731348.

The previous prime is 2146684867. The next prime is 2146684901. The reversal of 2146684873 is 3784866412.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2146684873 - 2²⁵ = 2113130441 is a prime.

It is a super-2 number, since 2×2146684873² = 9216511887934052258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2146684973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1475673 + ... + 1477126.

It is an arithmetic number, because the mean of its divisors is an integer number (537409600).

Almost surely, 2^2146684873 is an apocalyptic number.

It is an amenable number.

2146684873 is a deficient number, since it is larger than the sum of its proper divisors (2953527).

2146684873 is an equidigital number, since it uses as much as digits as its factorization.

2146684873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2953526.

The product of its digits is 1548288, while the sum is 49.

The square root of 2146684873 is about 46332.3307529418. The cubic root of 2146684873 is about 1289.9991733264. Note that the first 3 decimals are identical.

The spelling of 2146684873 in words is "two billion, one hundred forty-six million, six hundred eighty-four thousand, eight hundred seventy-three".