23409672621 has 16 divisors (see below), whose sum is σ = 31615930368. Its totient is φ = 15406180400.

The previous prime is 23409672617. The next prime is 23409672647. The reversal of 23409672621 is 12627690432.

It is a cyclic number.

It is not a de Polignac number, because 23409672621 - 2² = 23409672617 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23409672421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80871 + ... + 230996.

It is an arithmetic number, because the mean of its divisors is an integer number (1975995648).

Almost surely, 2^23409672621 is an apocalyptic number.

It is an amenable number.

23409672621 is a deficient number, since it is larger than the sum of its proper divisors (8206257747).

23409672621 is a wasteful number, since it uses less digits than its factorization.

23409672621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312192.

The product of its (nonzero) digits is 217728, while the sum is 42.

The spelling of 23409672621 in words is "twenty-three billion, four hundred nine million, six hundred seventy-two thousand, six hundred twenty-one".