544142221542 has 24 divisors (see below), whose sum is σ = 1181068929144. Its totient is φ = 181058568864.

The previous prime is 544142221537. The next prime is 544142221591. The reversal of 544142221542 is 245122241445.

544142221542 is a `hidden beast` number, since 5 + 4 + 414 + 22 + 215 + 4 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 544142221497 and 544142221506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26837223 + ... + 26857490.

It is an arithmetic number, because the mean of its divisors is an integer number (49211205381).

Almost surely, 2^544142221542 is an apocalyptic number.

544142221542 is an abundant number, since it is smaller than the sum of its proper divisors (636926707602).

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

544142221542 is a wasteful number, since it uses less digits than its factorization.

544142221542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53695284 (or 53695281 counting only the distinct ones).

The product of its digits is 102400, while the sum is 36.

Adding to 544142221542 its reverse (245122241445), we get a palindrome (789264462987).

The spelling of 544142221542 in words is "five hundred forty-four billion, one hundred forty-two million, two hundred twenty-one thousand, five hundred forty-two".