23823640547 has 8 divisors (see below), whose sum is σ = 27269104896. Its totient is φ = 20388697992.

The previous prime is 23823640537. The next prime is 23823640553. The reversal of 23823640547 is 74504632832.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23823640547 - 2⁴ = 23823640531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23823640498 and 23823640507.

It is not an unprimeable number, because it can be changed into a prime (23823640537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2625593 + ... + 2634650.

It is an arithmetic number, because the mean of its divisors is an integer number (3408638112).

Almost surely, 2^23823640547 is an apocalyptic number.

23823640547 is a deficient number, since it is larger than the sum of its proper divisors (3445464349).

23823640547 is an equidigital number, since it uses as much as digits as its factorization.

23823640547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5260897.

The product of its (nonzero) digits is 967680, while the sum is 44.

The spelling of 23823640547 in words is "twenty-three billion, eight hundred twenty-three million, six hundred forty thousand, five hundred forty-seven".