23369621404609 has 4 divisors (see below), whose sum is σ = 23409433366704. Its totient is φ = 23329809442516.

The previous prime is 23369621404589. The next prime is 23369621404621. The reversal of 23369621404609 is 90640412696332.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-23369621404609 is a prime.

It is a super-2 number, since 2×23369621404609² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23369621404609.

It is not an unprimeable number, because it can be changed into a prime (23369621404639) 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, 19905980167 + ... + 19905981340.

It is an arithmetic number, because the mean of its divisors is an integer number (5852358341676).

Almost surely, 2^{23369621404609} is an apocalyptic number.

It is an amenable number.

23369621404609 is a deficient number, since it is larger than the sum of its proper divisors (39811962095).

23369621404609 is an equidigital number, since it uses as much as digits as its factorization.

23369621404609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39811962094.

The product of its (nonzero) digits is 10077696, while the sum is 55.

The spelling of 23369621404609 in words is "twenty-three trillion, three hundred sixty-nine billion, six hundred twenty-one million, four hundred four thousand, six hundred nine".