23834460509 has 4 divisors (see below), whose sum is σ = 23853126204. Its totient is φ = 23815794816.

The previous prime is 23834460499. The next prime is 23834460511. The reversal of 23834460509 is 90506443832.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9879763609 + 13954696900 = 99397^2 + 118130^2 .

It is a cyclic number.

It is not a de Polignac number, because 23834460509 - 2¹⁶ = 23834394973 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23834460509.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23834460109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9330932 + ... + 9333485.

It is an arithmetic number, because the mean of its divisors is an integer number (5963281551).

Almost surely, 2^23834460509 is an apocalyptic number.

It is an amenable number.

23834460509 is a deficient number, since it is larger than the sum of its proper divisors (18665695).

23834460509 is a wasteful number, since it uses less digits than its factorization.

23834460509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18665694.

The product of its (nonzero) digits is 622080, while the sum is 44.

The spelling of 23834460509 in words is "twenty-three billion, eight hundred thirty-four million, four hundred sixty thousand, five hundred nine".