42121424410 has 16 divisors (see below), whose sum is σ = 81650761416. Its totient is φ = 15552525888.

The previous prime is 42121424383. The next prime is 42121424447. The reversal of 42121424410 is 1442412124.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 19911185449 + 22210238961 = 141107^2 + 149031^2 .

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, 162005349 + ... + 162005608.

Almost surely, 2^42121424410 is an apocalyptic number.

42121424410 is a deficient number, since it is larger than the sum of its proper divisors (39529337006).

42121424410 is a wasteful number, since it uses less digits than its factorization.

42121424410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324010977.

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 42121424410 its reverse (1442412124), we get a palindrome (43563836534).

The spelling of 42121424410 in words is "forty-two billion, one hundred twenty-one million, four hundred twenty-four thousand, four hundred ten".