23968516409 has 4 divisors (see below), whose sum is σ = 23971277904. Its totient is φ = 23965754916.

The previous prime is 23968516381. The next prime is 23968516441. The reversal of 23968516409 is 90461586932.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23968516409 - 2³² = 19673549113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23968516009) 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, 1367687 + ... + 1385100.

It is an arithmetic number, because the mean of its divisors is an integer number (5992819476).

Almost surely, 2^23968516409 is an apocalyptic number.

It is an amenable number.

23968516409 is a deficient number, since it is larger than the sum of its proper divisors (2761495).

23968516409 is an equidigital number, since it uses as much as digits as its factorization.

23968516409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2761494.

The product of its (nonzero) digits is 2799360, while the sum is 53.

The spelling of 23968516409 in words is "twenty-three billion, nine hundred sixty-eight million, five hundred sixteen thousand, four hundred nine".