42154220524 has 24 divisors (see below), whose sum is σ = 79794490608. Its totient is φ = 19370080320.

The previous prime is 42154220513. The next prime is 42154220539. The reversal of 42154220524 is 42502245124.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1773787 + ... + 1797394.

It is an arithmetic number, because the mean of its divisors is an integer number (3324770442).

Almost surely, 2^42154220524 is an apocalyptic number.

It is an amenable number.

42154220524 is a deficient number, since it is larger than the sum of its proper divisors (37640270084).

42154220524 is a wasteful number, since it uses less digits than its factorization.

42154220524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3571425 (or 3571423 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 31.

Adding to 42154220524 its reverse (42502245124), we get a palindrome (84656465648).

The spelling of 42154220524 in words is "forty-two billion, one hundred fifty-four million, two hundred twenty thousand, five hundred twenty-four".