44991603443 has 4 divisors (see below), whose sum is σ = 44992107888. Its totient is φ = 44991099000.

The previous prime is 44991603431. The next prime is 44991603491. The reversal of 44991603443 is 34430619944.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 44991603443 - 2⁴ = 44991603427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44991633443) 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, 78596 + ... + 310097.

It is an arithmetic number, because the mean of its divisors is an integer number (11248026972).

Almost surely, 2^44991603443 is an apocalyptic number.

44991603443 is a deficient number, since it is larger than the sum of its proper divisors (504445).

44991603443 is a wasteful number, since it uses less digits than its factorization.

44991603443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504444.

The product of its (nonzero) digits is 1119744, while the sum is 47.

The spelling of 44991603443 in words is "forty-four billion, nine hundred ninety-one million, six hundred three thousand, four hundred forty-three".