44181126157813 has 8 divisors (see below), whose sum is σ = 47662657742808. Its totient is φ = 40797665885184.

The previous prime is 44181126157799. The next prime is 44181126157871. The reversal of 44181126157813 is 31875162118144.

44181126157813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 18078202911409 + 26102923246404 = 4251847^2 + 5109102^2 .

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 44181126157813 - 2¹³ = 44181126149621 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 (44181126127813) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 24517827156 + ... + 24517828957.

It is an arithmetic number, because the mean of its divisors is an integer number (5957832217851).

Almost surely, 2^{44181126157813} is an apocalyptic number.

It is an amenable number.

44181126157813 is a deficient number, since it is larger than the sum of its proper divisors (3481531584995).

44181126157813 is a wasteful number, since it uses less digits than its factorization.

44181126157813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49035656183.

The product of its digits is 1290240, while the sum is 52.

The spelling of 44181126157813 in words is "forty-four trillion, one hundred eighty-one billion, one hundred twenty-six million, one hundred fifty-seven thousand, eight hundred thirteen".