423623584909 has 4 divisors (see below), whose sum is σ = 484141239904. Its totient is φ = 363105929916.

The previous prime is 423623584897. The next prime is 423623584939. The reversal of 423623584909 is 909485326324.

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 423623584909 - 2¹¹ = 423623582861 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 423623584909.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423623584939) 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, 30258827487 + ... + 30258827500.

It is an arithmetic number, because the mean of its divisors is an integer number (121035309976).

Almost surely, 2^423623584909 is an apocalyptic number.

It is an amenable number.

423623584909 is a deficient number, since it is larger than the sum of its proper divisors (60517654995).

423623584909 is an equidigital number, since it uses as much as digits as its factorization.

423623584909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60517654994.

The product of its (nonzero) digits is 11197440, while the sum is 55.

The spelling of 423623584909 in words is "four hundred twenty-three billion, six hundred twenty-three million, five hundred eighty-four thousand, nine hundred nine".