23967344447 has 4 divisors (see below), whose sum is σ = 25377188256. Its totient is φ = 22557500640.

The previous prime is 23967344431. The next prime is 23967344461. The reversal of 23967344447 is 74444376932.

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 23967344447 - 2⁴ = 23967344431 is a prime.

It is a super-2 number, since 2×23967344447² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23967344407) 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, 704921879 + ... + 704921912.

It is an arithmetic number, because the mean of its divisors is an integer number (6344297064).

Almost surely, 2^23967344447 is an apocalyptic number.

23967344447 is a deficient number, since it is larger than the sum of its proper divisors (1409843809).

23967344447 is a wasteful number, since it uses less digits than its factorization.

23967344447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1409843808.

The product of its digits is 12192768, while the sum is 53.

The spelling of 23967344447 in words is "twenty-three billion, nine hundred sixty-seven million, three hundred forty-four thousand, four hundred forty-seven".