44172218447 has 8 divisors (see below), whose sum is σ = 53452096416. Its totient is φ = 35634730752.

The previous prime is 44172218407. The next prime is 44172218483. The reversal of 44172218447 is 74481227144.

It is a happy number.

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 44172218447 - 2¹⁰ = 44172217423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 44172218398 and 44172218407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44172218407) 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, 185597438 + ... + 185597675.

It is an arithmetic number, because the mean of its divisors is an integer number (6681512052).

Almost surely, 2^44172218447 is an apocalyptic number.

44172218447 is a deficient number, since it is larger than the sum of its proper divisors (9279877969).

44172218447 is a wasteful number, since it uses less digits than its factorization.

44172218447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371195137.

The product of its digits is 401408, while the sum is 44.

The spelling of 44172218447 in words is "forty-four billion, one hundred seventy-two million, two hundred eighteen thousand, four hundred forty-seven".