23424780647 has 4 divisors (see below), whose sum is σ = 23425457880. Its totient is φ = 23424103416.

The previous prime is 23424780637. The next prime is 23424780671. The reversal of 23424780647 is 74608742432.

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 23424780647 - 2¹⁸ = 23424518503 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 (23424780637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 283772 + ... + 356897.

It is an arithmetic number, because the mean of its divisors is an integer number (5856364470).

Almost surely, 2^23424780647 is an apocalyptic number.

23424780647 is a deficient number, since it is larger than the sum of its proper divisors (677233).

23424780647 is an equidigital number, since it uses as much as digits as its factorization.

23424780647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677232.

The product of its (nonzero) digits is 1806336, while the sum is 47.

The spelling of 23424780647 in words is "twenty-three billion, four hundred twenty-four million, seven hundred eighty thousand, six hundred forty-seven".