234564106509 has 6 divisors (see below), whose sum is σ = 338814820526. Its totient is φ = 156376071000.

The previous prime is 234564106501. The next prime is 234564106519. The reversal of 234564106509 is 905601465432.

234564106509 is a `hidden beast` number, since 2 + 34 + 5 + 6 + 4 + 106 + 509 = 666.

234564106509 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 166583973609 + 67980132900 = 408147^2 + 260730^2 .

It is not a de Polignac number, because 234564106509 - 2³ = 234564106501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234564106501) 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 5 ways as a sum of consecutive naturals, for example, 13031339242 + ... + 13031339259.

Almost surely, 2^234564106509 is an apocalyptic number.

It is an amenable number.

234564106509 is a deficient number, since it is larger than the sum of its proper divisors (104250714017).

234564106509 is a wasteful number, since it uses less digits than its factorization.

234564106509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26062678507 (or 26062678504 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 45.

The spelling of 234564106509 in words is "two hundred thirty-four billion, five hundred sixty-four million, one hundred six thousand, five hundred nine".