4544020671863 has 16 divisors (see below), whose sum is σ = 4880131177536. Its totient is φ = 4215582228480.

The previous prime is 4544020671859. The next prime is 4544020671881. The reversal of 4544020671863 is 3681760204454.

It is a cyclic number.

It is not a de Polignac number, because 4544020671863 - 2² = 4544020671859 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4544020674863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5237495 + ... + 6043127.

It is an arithmetic number, because the mean of its divisors is an integer number (305008198596).

Almost surely, 2^{4544020671863} is an apocalyptic number.

4544020671863 is a deficient number, since it is larger than the sum of its proper divisors (336110505673).

4544020671863 is a wasteful number, since it uses less digits than its factorization.

4544020671863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810394.

The product of its (nonzero) digits is 3870720, while the sum is 50.

The spelling of 4544020671863 in words is "four trillion, five hundred forty-four billion, twenty million, six hundred seventy-one thousand, eight hundred sixty-three".