542240204644 has 12 divisors (see below), whose sum is σ = 952421911168. Its totient is φ = 270119658600.

The previous prime is 542240204617. The next prime is 542240204669. The reversal of 542240204644 is 446402042245.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250109712 + ... + 250111879.

Almost surely, 2^542240204644 is an apocalyptic number.

It is an amenable number.

542240204644 is a deficient number, since it is larger than the sum of its proper divisors (410181706524).

542240204644 is a wasteful number, since it uses less digits than its factorization.

542240204644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500221866 (or 500221864 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 37.

Adding to 542240204644 its reverse (446402042245), we get a palindrome (988642246889).

The spelling of 542240204644 in words is "five hundred forty-two billion, two hundred forty million, two hundred four thousand, six hundred forty-four".