12238428895 has 36 divisors (see below), whose sum is σ = 18645674472. Its totient is φ = 7625570400.

The previous prime is 12238428887. The next prime is 12238428919. The reversal of 12238428895 is 59882483221.

It is not a de Polignac number, because 12238428895 - 2³ = 12238428887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5741980 + ... + 5744110.

It is an arithmetic number, because the mean of its divisors is an integer number (517935402).

Almost surely, 2^12238428895 is an apocalyptic number.

12238428895 is a deficient number, since it is larger than the sum of its proper divisors (6407245577).

12238428895 is an frugal number, since it uses more digits than its factorization.

12238428895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4292 (or 2154 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 52.

The spelling of 12238428895 in words is "twelve billion, two hundred thirty-eight million, four hundred twenty-eight thousand, eight hundred ninety-five".