542044446544 has 10 divisors (see below), whose sum is σ = 1050211115210. Its totient is φ = 271022223264.

The previous prime is 542044446523. The next prime is 542044446547. The reversal of 542044446544 is 445644440245.

It can be written as a sum of positive squares in only one way, i.e., 445315982400 + 96728464144 = 667320^2 + 311012^2 .

It is a junction number, because it is equal to n+sod(n) for n = 542044446494 and 542044446503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542044446547) 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 as a sum of consecutive naturals, namely, 16938888939 + ... + 16938888970.

It is an arithmetic number, because the mean of its divisors is an integer number (105021111521).

Almost surely, 2^542044446544 is an apocalyptic number.

It is an amenable number.

542044446544 is a deficient number, since it is larger than the sum of its proper divisors (508166668666).

542044446544 is a wasteful number, since it uses less digits than its factorization.

542044446544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33877777917 (or 33877777911 counting only the distinct ones).

The product of its (nonzero) digits is 4915200, while the sum is 46.

Adding to 542044446544 its reverse (445644440245), we get a palindrome (987688886789).

The spelling of 542044446544 in words is "five hundred forty-two billion, forty-four million, four hundred forty-six thousand, five hundred forty-four".