42151224542 has 16 divisors (see below), whose sum is σ = 72289546080. Its totient is φ = 18057234528.

The previous prime is 42151224517. The next prime is 42151224571. The reversal of 42151224542 is 24542215124.

It is a junction number, because it is equal to n+sod(n) for n = 42151224499 and 42151224508.

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, 596693 + ... + 663584.

It is an arithmetic number, because the mean of its divisors is an integer number (4518096630).

Almost surely, 2^42151224542 is an apocalyptic number.

42151224542 is a deficient number, since it is larger than the sum of its proper divisors (30138321538).

42151224542 is a wasteful number, since it uses less digits than its factorization.

42151224542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1262675.

The product of its digits is 25600, while the sum is 32.

Adding to 42151224542 its reverse (24542215124), we get a palindrome (66693439666).

The spelling of 42151224542 in words is "forty-two billion, one hundred fifty-one million, two hundred twenty-four thousand, five hundred forty-two".