2128851568 has 40 divisors (see below), whose sum is σ = 4283658368. Its totient is φ = 1024132032.

The previous prime is 2128851559. The next prime is 2128851577. The reversal of 2128851568 is 8651588212.

It is an interprime number because it is at equal distance from previous prime (2128851559) and next prime (2128851577).

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, 23005 + ... + 69187.

Almost surely, 2^2128851568 is an apocalyptic number.

It is an amenable number.

2128851568 is an abundant number, since it is smaller than the sum of its proper divisors (2154806800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2128851568 is a wasteful number, since it uses less digits than its factorization.

2128851568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46301 (or 46295 counting only the distinct ones).

The product of its digits is 307200, while the sum is 46.

The square root of 2128851568 is about 46139.4794942466. The cubic root of 2128851568 is about 1286.4170689416.

The spelling of 2128851568 in words is "two billion, one hundred twenty-eight million, eight hundred fifty-one thousand, five hundred sixty-eight".