2133743643 has 24 divisors (see below), whose sum is σ = 3356168400. Its totient is φ = 1301154624.

The previous prime is 2133743641. The next prime is 2133743657. The reversal of 2133743643 is 3463473312.

2133743643 is a `hidden beast` number, since 2 + 1 + 3 + 3 + 7 + 4 + 3 + 643 = 666.

It is not a de Polignac number, because 2133743643 - 2¹ = 2133743641 is a prime.

It is a super-2 number, since 2×2133743643² = 9105723868085822898, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2133743598 and 2133743607.

It is not an unprimeable number, because it can be changed into a prime (2133743641) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 210180 + ... + 220097.

It is an arithmetic number, because the mean of its divisors is an integer number (139840350).

Almost surely, 2^2133743643 is an apocalyptic number.

2133743643 is a deficient number, since it is larger than the sum of its proper divisors (1222424757).

2133743643 is a wasteful number, since it uses less digits than its factorization.

2133743643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430331 (or 430328 counting only the distinct ones).

The product of its digits is 108864, while the sum is 36.

The square root of 2133743643 is about 46192.4630540524. The cubic root of 2133743643 is about 1287.4017053560.

It can be divided in two parts, 21337 and 43643, that added together give a triangular number (64980 = T₃₆₀).

The spelling of 2133743643 in words is "two billion, one hundred thirty-three million, seven hundred forty-three thousand, six hundred forty-three".