234644394091 has 8 divisors (see below), whose sum is σ = 237959186400. Its totient is φ = 231329878080.

The previous prime is 234644394013. The next prime is 234644394121. The reversal of 234644394091 is 190493446432.

234644394091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 234644394091 - 2²¹ = 234642296939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (234644334091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2133805 + ... + 2241073.

It is an arithmetic number, because the mean of its divisors is an integer number (29744898300).

Almost surely, 2^234644394091 is an apocalyptic number.

234644394091 is a deficient number, since it is larger than the sum of its proper divisors (3314792309).

234644394091 is a wasteful number, since it uses less digits than its factorization.

234644394091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138149.

The product of its (nonzero) digits is 2239488, while the sum is 49.

The spelling of 234644394091 in words is "two hundred thirty-four billion, six hundred forty-four million, three hundred ninety-four thousand, ninety-one".