544163997887 has 8 divisors (see below), whose sum is σ = 547097964000. Its totient is φ = 541237888224.

The previous prime is 544163997869. The next prime is 544163997889. The reversal of 544163997887 is 788799361445.

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 544163997887 - 2²⁰ = 544162949311 is a prime.

It is a super-2 number, since 2×544163997887² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 544163997887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544163997889) 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, 1825187 + ... + 2102292.

It is an arithmetic number, because the mean of its divisors is an integer number (68387245500).

Almost surely, 2^544163997887 is an apocalyptic number.

544163997887 is a deficient number, since it is larger than the sum of its proper divisors (2933966113).

544163997887 is a wasteful number, since it uses less digits than its factorization.

544163997887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3928225.

The product of its digits is 365783040, while the sum is 71.

The spelling of 544163997887 in words is "five hundred forty-four billion, one hundred sixty-three million, nine hundred ninety-seven thousand, eight hundred eighty-seven".