2133928639 has 8 divisors (see below), whose sum is σ = 2238234048. Its totient is φ = 2032077600.

The previous prime is 2133928633. The next prime is 2133928711. The reversal of 2133928639 is 9368293312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2133928639 - 2⁵ = 2133928607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2133928633) 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, 611812 + ... + 615289.

It is an arithmetic number, because the mean of its divisors is an integer number (279779256).

Almost surely, 2^2133928639 is an apocalyptic number.

2133928639 is a deficient number, since it is larger than the sum of its proper divisors (104305409).

2133928639 is a wasteful number, since it uses less digits than its factorization.

2133928639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1227185.

The product of its digits is 419904, while the sum is 46.

The square root of 2133928639 is about 46194.4654585373. The cubic root of 2133928639 is about 1287.4389102758.

The spelling of 2133928639 in words is "two billion, one hundred thirty-three million, nine hundred twenty-eight thousand, six hundred thirty-nine".