23421051466409 has 4 divisors (see below), whose sum is σ = 24176569255680. Its totient is φ = 22665533677140.

The previous prime is 23421051466289. The next prime is 23421051466433. The reversal of 23421051466409 is 90466415012432.

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-23421051466409 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23421051466459) 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, 377758894589 + ... + 377758894650.

It is an arithmetic number, because the mean of its divisors is an integer number (6044142313920).

Almost surely, 2^{23421051466409} is an apocalyptic number.

It is an amenable number.

23421051466409 is a deficient number, since it is larger than the sum of its proper divisors (755517789271).

23421051466409 is an equidigital number, since it uses as much as digits as its factorization.

23421051466409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755517789270.

The product of its (nonzero) digits is 1244160, while the sum is 47.

The spelling of 23421051466409 in words is "twenty-three trillion, four hundred twenty-one billion, fifty-one million, four hundred sixty-six thousand, four hundred nine".