44013521023 has 4 divisors (see below), whose sum is σ = 44040574600. Its totient is φ = 43986467448.

The previous prime is 44013521021. The next prime is 44013521059. The reversal of 44013521023 is 32012531044.

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

It is a cyclic number.

It is not a de Polignac number, because 44013521023 - 2¹ = 44013521021 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 (44013521021) 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, 13524348 + ... + 13527601.

It is an arithmetic number, because the mean of its divisors is an integer number (11010143650).

Almost surely, 2^44013521023 is an apocalyptic number.

44013521023 is a deficient number, since it is larger than the sum of its proper divisors (27053577).

44013521023 is a wasteful number, since it uses less digits than its factorization.

44013521023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27053576.

The product of its (nonzero) digits is 2880, while the sum is 25.

The spelling of 44013521023 in words is "forty-four billion, thirteen million, five hundred twenty-one thousand, twenty-three".