2167875128 has 16 divisors (see below), whose sum is σ = 4079444280. Its totient is φ = 1080023328.

The previous prime is 2167875109. The next prime is 2167875131. The reversal of 2167875128 is 8215787612.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 486926 + ... + 491357.

Almost surely, 2^2167875128 is an apocalyptic number.

It is an amenable number.

2167875128 is a deficient number, since it is larger than the sum of its proper divisors (1911569152).

2167875128 is a wasteful number, since it uses less digits than its factorization.

2167875128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978566 (or 978562 counting only the distinct ones).

The product of its digits is 376320, while the sum is 47.

The square root of 2167875128 is about 46560.4459600636. The cubic root of 2167875128 is about 1294.2298761794.

The spelling of 2167875128 in words is "two billion, one hundred sixty-seven million, eight hundred seventy-five thousand, one hundred twenty-eight".