233749634189 has 2 divisors, whose sum is σ = 233749634190. Its totient is φ = 233749634188.

The previous prime is 233749634141. The next prime is 233749634201. The reversal of 233749634189 is 981436947332.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 211454664964 + 22294969225 = 459842^2 + 149315^2 .

It is a cyclic number.

It is not a de Polignac number, because 233749634189 - 2⁸ = 233749633933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (233749634689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116874817094 + 116874817095.

It is an arithmetic number, because the mean of its divisors is an integer number (116874817095).

Almost surely, 2^233749634189 is an apocalyptic number.

It is an amenable number.

233749634189 is a deficient number, since it is larger than the sum of its proper divisors (1).

233749634189 is an equidigital number, since it uses as much as digits as its factorization.

233749634189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23514624, while the sum is 59.

The spelling of 233749634189 in words is "two hundred thirty-three billion, seven hundred forty-nine million, six hundred thirty-four thousand, one hundred eighty-nine".