542214243621 has 32 divisors (see below), whose sum is σ = 805620349440. Its totient is φ = 360423936000.

The previous prime is 542214243617. The next prime is 542214243689. The reversal of 542214243621 is 126342412245.

542214243621 is a `hidden beast` number, since 5 + 4 + 2 + 2 + 1 + 4 + 24 + 3 + 621 = 666.

It is not a de Polignac number, because 542214243621 - 2² = 542214243617 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542214243601) 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 31 ways as a sum of consecutive naturals, for example, 29797636 + ... + 29815826.

It is an arithmetic number, because the mean of its divisors is an integer number (25175635920).

Almost surely, 2^542214243621 is an apocalyptic number.

It is an amenable number.

542214243621 is a deficient number, since it is larger than the sum of its proper divisors (263406105819).

542214243621 is a wasteful number, since it uses less digits than its factorization.

542214243621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21354 (or 21348 counting only the distinct ones).

The product of its digits is 92160, while the sum is 36.

Adding to 542214243621 its reverse (126342412245), we get a palindrome (668556655866).

The spelling of 542214243621 in words is "five hundred forty-two billion, two hundred fourteen million, two hundred forty-three thousand, six hundred twenty-one".