213674643233 has 4 divisors (see below), whose sum is σ = 213781536000. Its totient is φ = 213567750468.

The previous prime is 213674643187. The next prime is 213674643239. The reversal of 213674643233 is 332346476312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 213674643233 - 2⁸ = 213674642977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (213674643239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53443385 + ... + 53447382.

It is an arithmetic number, because the mean of its divisors is an integer number (53445384000).

Almost surely, 2^213674643233 is an apocalyptic number.

It is an amenable number.

213674643233 is a deficient number, since it is larger than the sum of its proper divisors (106892767).

213674643233 is a wasteful number, since it uses less digits than its factorization.

213674643233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106892766.

The product of its digits is 1306368, while the sum is 44.

The spelling of 213674643233 in words is "two hundred thirteen billion, six hundred seventy-four million, six hundred forty-three thousand, two hundred thirty-three".