47644544443 has 4 divisors (see below), whose sum is σ = 47919946608. Its totient is φ = 47369142280.

The previous prime is 47644544429. The next prime is 47644544477. The reversal of 47644544443 is 34444544674.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34444544674 = 2 ⋅17222272337.

It is a cyclic number.

It is not a de Polignac number, because 47644544443 - 2¹⁷ = 47644413371 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47644544543) 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, 137700823 + ... + 137701168.

It is an arithmetic number, because the mean of its divisors is an integer number (11979986652).

Almost surely, 2^47644544443 is an apocalyptic number.

47644544443 is a deficient number, since it is larger than the sum of its proper divisors (275402165).

47644544443 is a wasteful number, since it uses less digits than its factorization.

47644544443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275402164.

The product of its digits is 10321920, while the sum is 49.

The spelling of 47644544443 in words is "forty-seven billion, six hundred forty-four million, five hundred forty-four thousand, four hundred forty-three".