2133891487 has 16 divisors (see below), whose sum is σ = 2631605760. Its totient is φ = 1684960992.

The previous prime is 2133891449. The next prime is 2133891499. The reversal of 2133891487 is 7841983312.

It is not a de Polignac number, because 2133891487 - 2⁷ = 2133891359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2133891407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22464 + ... + 69082.

It is an arithmetic number, because the mean of its divisors is an integer number (164475360).

Almost surely, 2^2133891487 is an apocalyptic number.

2133891487 is a deficient number, since it is larger than the sum of its proper divisors (497714273).

2133891487 is a wasteful number, since it uses less digits than its factorization.

2133891487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47142.

The product of its digits is 290304, while the sum is 46.

The square root of 2133891487 is about 46194.0633306922. The cubic root of 2133891487 is about 1287.4314387345.

The spelling of 2133891487 in words is "two billion, one hundred thirty-three million, eight hundred ninety-one thousand, four hundred eighty-seven".