42421501250452 has 12 divisors (see below), whose sum is σ = 74238029290516. Its totient is φ = 21210635738880.

The previous prime is 42421501250441. The next prime is 42421501250461. The reversal of 42421501250452 is 25405210512424.

It can be written as a sum of positive squares in 2 ways, for example, as 37240433020036 + 5181068230416 = 6102494^2 + 2276196^2 .

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 27888093 + ... + 29369860.

Almost surely, 2^{42421501250452} is an apocalyptic number.

It is an amenable number.

42421501250452 is a deficient number, since it is larger than the sum of its proper divisors (31816528040064).

42421501250452 is a wasteful number, since it uses less digits than its factorization.

42421501250452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57443178 (or 57443176 counting only the distinct ones).

The product of its (nonzero) digits is 128000, while the sum is 37.

Adding to 42421501250452 its reverse (25405210512424), we get a palindrome (67826711762876).

The spelling of 42421501250452 in words is "forty-two trillion, four hundred twenty-one billion, five hundred one million, two hundred fifty thousand, four hundred fifty-two".