44249839121 has 4 divisors (see below), whose sum is σ = 46852770852. Its totient is φ = 41646907392.

The previous prime is 44249839111. The next prime is 44249839229. The reversal of 44249839121 is 12193894244.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13428174400 + 30821664721 = 115880^2 + 175561^2 .

It is a cyclic number.

It is not a de Polignac number, because 44249839121 - 2⁶ = 44249839057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44249839111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1301465840 + ... + 1301465873.

It is an arithmetic number, because the mean of its divisors is an integer number (11713192713).

Almost surely, 2^44249839121 is an apocalyptic number.

It is an amenable number.

44249839121 is a deficient number, since it is larger than the sum of its proper divisors (2602931731).

44249839121 is a wasteful number, since it uses less digits than its factorization.

44249839121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2602931730.

The product of its digits is 497664, while the sum is 47.

The spelling of 44249839121 in words is "forty-four billion, two hundred forty-nine million, eight hundred thirty-nine thousand, one hundred twenty-one".