23213323647 has 6 divisors (see below), whose sum is σ = 33530356392. Its totient is φ = 15475549092.

The previous prime is 23213323631. The next prime is 23213323649. The reversal of 23213323647 is 74632331232.

23213323647 is a `hidden beast` number, since 2 + 3 + 2 + 1 + 3 + 3 + 2 + 3 + 647 = 666.

It is not a de Polignac number, because 23213323647 - 2⁴ = 23213323631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23213323649) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1289629083 + ... + 1289629100.

It is an arithmetic number, because the mean of its divisors is an integer number (5588392732).

Almost surely, 2^23213323647 is an apocalyptic number.

23213323647 is a deficient number, since it is larger than the sum of its proper divisors (10317032745).

23213323647 is a wasteful number, since it uses less digits than its factorization.

23213323647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2579258189 (or 2579258186 counting only the distinct ones).

The product of its digits is 108864, while the sum is 36.

Adding to 23213323647 its reverse (74632331232), we get a palindrome (97845654879).

The spelling of 23213323647 in words is "twenty-three billion, two hundred thirteen million, three hundred twenty-three thousand, six hundred forty-seven".