2128629876 has 24 divisors (see below), whose sum is σ = 5002539360. Its totient is φ = 704438112.

The previous prime is 2128629863. The next prime is 2128629901. The reversal of 2128629876 is 6789268212.

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, 636411 + ... + 639746.

It is an arithmetic number, because the mean of its divisors is an integer number (208439140).

Almost surely, 2^2128629876 is an apocalyptic number.

It is an amenable number.

2128629876 is an abundant number, since it is smaller than the sum of its proper divisors (2873909484).

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

2128629876 is a wasteful number, since it uses less digits than its factorization.

2128629876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1276303 (or 1276301 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 51.

The square root of 2128629876 is about 46137.0770205482. The cubic root of 2128629876 is about 1286.3724128968.

The spelling of 2128629876 in words is "two billion, one hundred twenty-eight million, six hundred twenty-nine thousand, eight hundred seventy-six".