542043644256 has 48 divisors (see below), whose sum is σ = 1580960631600. Its totient is φ = 180681214464.

The previous prime is 542043644237. The next prime is 542043644281. The reversal of 542043644256 is 652446340245.

It is a happy number.

542043644256 is a `hidden beast` number, since 542 + 0 + 4 + 3 + 64 + 42 + 5 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×542043644256² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 313681801 + ... + 313683528.

It is an arithmetic number, because the mean of its divisors is an integer number (32936679825).

Almost surely, 2^542043644256 is an apocalyptic number.

It is an amenable number.

542043644256 is an abundant number, since it is smaller than the sum of its proper divisors (1038916987344).

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

542043644256 is a wasteful number, since it uses less digits than its factorization.

542043644256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627365348 (or 627365334 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 45.

The spelling of 542043644256 in words is "five hundred forty-two billion, forty-three million, six hundred forty-four thousand, two hundred fifty-six".