234004043989 has 2 divisors, whose sum is σ = 234004043990. Its totient is φ = 234004043988.

The previous prime is 234004043981. The next prime is 234004044007. The reversal of 234004043989 is 989340400432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 191327508100 + 42676535889 = 437410^2 + 206583^2 .

It is a cyclic number.

It is not a de Polignac number, because 234004043989 - 2³ = 234004043981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (234004043981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117002021994 + 117002021995.

It is an arithmetic number, because the mean of its divisors is an integer number (117002021995).

Almost surely, 2^234004043989 is an apocalyptic number.

It is an amenable number.

234004043989 is a deficient number, since it is larger than the sum of its proper divisors (1).

234004043989 is an equidigital number, since it uses as much as digits as its factorization.

234004043989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 746496, while the sum is 46.

The spelling of 234004043989 in words is "two hundred thirty-four billion, four million, forty-three thousand, nine hundred eighty-nine".