2133495991 has 8 divisors (see below), whose sum is σ = 2366899200. Its totient is φ = 1906667640.

The previous prime is 2133495989. The next prime is 2133496019. The reversal of 2133495991 is 1995943312.

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 2133495991 - 2¹ = 2133495989 is a prime.

It is a super-2 number, since 2×2133495991² = 9103610287226144162, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2133495911) 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, 1643031 + ... + 1644328.

It is an arithmetic number, because the mean of its divisors is an integer number (295862400).

Almost surely, 2^2133495991 is an apocalyptic number.

2133495991 is a deficient number, since it is larger than the sum of its proper divisors (233403209).

2133495991 is a wasteful number, since it uses less digits than its factorization.

2133495991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3287429.

The product of its digits is 262440, while the sum is 46.

The square root of 2133495991 is about 46189.7823225007. The cubic root of 2133495991 is about 1287.3518961949.

The spelling of 2133495991 in words is "two billion, one hundred thirty-three million, four hundred ninety-five thousand, nine hundred ninety-one".