2133689988 has 24 divisors (see below), whose sum is σ = 5029938592. Its totient is φ = 703897344.

The previous prime is 2133689981. The next prime is 2133690001. The reversal of 2133689988 is 8899863312.

2133689988 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2133689981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 915370 + ... + 917697.

Almost surely, 2^2133689988 is an apocalyptic number.

It is an amenable number.

2133689988 is an abundant number, since it is smaller than the sum of its proper divisors (2896248604).

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

2133689988 is a wasteful number, since it uses less digits than its factorization.

2133689988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1833171 (or 1833169 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 57.

The square root of 2133689988 is about 46191.8822738368. The cubic root of 2133689988 is about 1287.3909142881.

The spelling of 2133689988 in words is "two billion, one hundred thirty-three million, six hundred eighty-nine thousand, nine hundred eighty-eight".