44044784516821 has 4 divisors (see below), whose sum is σ = 48048855836544. Its totient is φ = 40040713197100.

The previous prime is 44044784516791. The next prime is 44044784516867. The reversal of 44044784516821 is 12861548744044.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 44044784516821 - 2¹³ = 44044784508629 is a prime.

It is a super-3 number, since 3×44044784516821³ (a number of 42 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44044784516521) 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, 2002035659845 + ... + 2002035659866.

It is an arithmetic number, because the mean of its divisors is an integer number (12012213959136).

Almost surely, 2^{44044784516821} is an apocalyptic number.

It is an amenable number.

44044784516821 is a deficient number, since it is larger than the sum of its proper divisors (4004071319723).

44044784516821 is a wasteful number, since it uses less digits than its factorization.

44044784516821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4004071319722.

The product of its (nonzero) digits is 27525120, while the sum is 58.

The spelling of 44044784516821 in words is "forty-four trillion, forty-four billion, seven hundred eighty-four million, five hundred sixteen thousand, eight hundred twenty-one".