23634870871 has 4 divisors (see below), whose sum is σ = 24137740512. Its totient is φ = 23132001232.

The previous prime is 23634870869. The next prime is 23634870877. The reversal of 23634870871 is 17807843632.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 23634870871 - 2¹ = 23634870869 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 (23634870877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 251434750 + ... + 251434843.

It is an arithmetic number, because the mean of its divisors is an integer number (6034435128).

Almost surely, 2^23634870871 is an apocalyptic number.

23634870871 is a deficient number, since it is larger than the sum of its proper divisors (502869641).

23634870871 is an equidigital number, since it uses as much as digits as its factorization.

23634870871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502869640.

The product of its (nonzero) digits is 1354752, while the sum is 49.

The spelling of 23634870871 in words is "twenty-three billion, six hundred thirty-four million, eight hundred seventy thousand, eight hundred seventy-one".