13244690821 has 8 divisors (see below), whose sum is σ = 13743525888. Its totient is φ = 12750330000.

The previous prime is 13244690749. The next prime is 13244690827. The reversal of 13244690821 is 12809644231.

13244690821 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13244690821 - 2¹¹ = 13244688773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13244690827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1112530 + ... + 1124371.

It is an arithmetic number, because the mean of its divisors is an integer number (1717940736).

Almost surely, 2^13244690821 is an apocalyptic number.

It is an amenable number.

13244690821 is a deficient number, since it is larger than the sum of its proper divisors (498835067).

13244690821 is a wasteful number, since it uses less digits than its factorization.

13244690821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2237123.

The product of its (nonzero) digits is 82944, while the sum is 40.

The spelling of 13244690821 in words is "thirteen billion, two hundred forty-four million, six hundred ninety thousand, eight hundred twenty-one".