5445443819 has 8 divisors (see below), whose sum is σ = 5564669760. Its totient is φ = 5326828416.

The previous prime is 5445443813. The next prime is 5445443837. The reversal of 5445443819 is 9183445445.

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 5445443819 - 2⁴ = 5445443803 is a prime.

It is a super-2 number, since 2×5445443819² = 59305716771770609522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5445443813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134579 + ... + 170300.

It is an arithmetic number, because the mean of its divisors is an integer number (695583720).

Almost surely, 2^5445443819 is an apocalyptic number.

5445443819 is a deficient number, since it is larger than the sum of its proper divisors (119225941).

5445443819 is a wasteful number, since it uses less digits than its factorization.

5445443819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305269.

The product of its digits is 1382400, while the sum is 47.

The square root of 5445443819 is about 73793.2504975895. The cubic root of 5445443819 is about 1759.3183287953.

The spelling of 5445443819 in words is "five billion, four hundred forty-five million, four hundred forty-three thousand, eight hundred nineteen".