13244421785 has 16 divisors (see below), whose sum is σ = 18165703296. Its totient is φ = 9080926848.

The previous prime is 13244421737. The next prime is 13244421797. The reversal of 13244421785 is 58712444231.

It is not a de Polignac number, because 13244421785 - 2¹² = 13244417689 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 519302 + ... + 544208.

It is an arithmetic number, because the mean of its divisors is an integer number (1135356456).

Almost surely, 2^13244421785 is an apocalyptic number.

It is an amenable number.

13244421785 is a deficient number, since it is larger than the sum of its proper divisors (4921281511).

13244421785 is a wasteful number, since it uses less digits than its factorization.

13244421785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40112.

The product of its digits is 215040, while the sum is 41.

The spelling of 13244421785 in words is "thirteen billion, two hundred forty-four million, four hundred twenty-one thousand, seven hundred eighty-five".