234689758109 has 2 divisors, whose sum is σ = 234689758110. Its totient is φ = 234689758108.

The previous prime is 234689758103. The next prime is 234689758111. The reversal of 234689758109 is 901857986432.

234689758109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 185592948025 + 49096810084 = 430805^2 + 221578^2 .

It is a cyclic number.

It is not a de Polignac number, because 234689758109 - 2⁸ = 234689757853 is a prime.

It is a super-2 number, since 2×234689758109² (a number of 24 digits) contains 22 as substring.

Together with 234689758111, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (234689758103) 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 as a sum of consecutive naturals, namely, 117344879054 + 117344879055.

It is an arithmetic number, because the mean of its divisors is an integer number (117344879055).

It is a 1-persistent number, because it is pandigital, but 2⋅234689758109 = 469379516218 is not.

Almost surely, 2^234689758109 is an apocalyptic number.

It is an amenable number.

234689758109 is a deficient number, since it is larger than the sum of its proper divisors (1).

234689758109 is an equidigital number, since it uses as much as digits as its factorization.

234689758109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26127360, while the sum is 62.

The spelling of 234689758109 in words is "two hundred thirty-four billion, six hundred eighty-nine million, seven hundred fifty-eight thousand, one hundred nine".