23446137329 has 4 divisors (see below), whose sum is σ = 23460674676. Its totient is φ = 23431599984.

The previous prime is 23446137307. The next prime is 23446137359. The reversal of 23446137329 is 92373164432.

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 15613002304 + 7833135025 = 124952^2 + 88505^2 .

It is a cyclic number.

It is not a de Polignac number, because 23446137329 - 2⁸ = 23446137073 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 23446137329.

It is not an unprimeable number, because it can be changed into a prime (23446137359) 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 in 3 ways as a sum of consecutive naturals, for example, 7266254 + ... + 7269479.

It is an arithmetic number, because the mean of its divisors is an integer number (5865168669).

Almost surely, 2^23446137329 is an apocalyptic number.

It is an amenable number.

23446137329 is a deficient number, since it is larger than the sum of its proper divisors (14537347).

23446137329 is a wasteful number, since it uses less digits than its factorization.

23446137329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14537346.

The product of its digits is 653184, while the sum is 44.

The spelling of 23446137329 in words is "twenty-three billion, four hundred forty-six million, one hundred thirty-seven thousand, three hundred twenty-nine".