13623445073 has 4 divisors (see below), whose sum is σ = 15569651520. Its totient is φ = 11677238628.

The previous prime is 13623445063. The next prime is 13623445079. The reversal of 13623445073 is 37054432631.

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 13623445073 - 2¹⁶ = 13623379537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13623445079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 973103213 + ... + 973103226.

It is an arithmetic number, because the mean of its divisors is an integer number (3892412880).

Almost surely, 2^13623445073 is an apocalyptic number.

It is an amenable number.

13623445073 is a deficient number, since it is larger than the sum of its proper divisors (1946206447).

13623445073 is an equidigital number, since it uses as much as digits as its factorization.

13623445073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1946206446.

The product of its (nonzero) digits is 181440, while the sum is 38.

The spelling of 13623445073 in words is "thirteen billion, six hundred twenty-three million, four hundred forty-five thousand, seventy-three".