543244644612 has 18 divisors (see below), whose sum is σ = 1373201740638. Its totient is φ = 181081548192.

The previous prime is 543244644589. The next prime is 543244644617. The reversal of 543244644612 is 216446442345.

543244644612 is a `hidden beast` number, since 5 + 4 + 3 + 24 + 4 + 6 + 4 + 4 + 612 = 666.

It can be written as a sum of positive squares in only one way, i.e., 370559517696 + 172685126916 = 608736^2 + 415554^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×543244644612² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (543244644617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7545064473 + ... + 7545064544.

It is an arithmetic number, because the mean of its divisors is an integer number (76288985591).

Almost surely, 2^543244644612 is an apocalyptic number.

It is an amenable number.

543244644612 is an abundant number, since it is smaller than the sum of its proper divisors (829957096026).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

543244644612 is a wasteful number, since it uses less digits than its factorization.

543244644612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15090129027 (or 15090129022 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 45.

The spelling of 543244644612 in words is "five hundred forty-three billion, two hundred forty-four million, six hundred forty-four thousand, six hundred twelve".