42144421503 has 32 divisors (see below), whose sum is σ = 58199097600. Its totient is φ = 27106361856.

The previous prime is 42144421499. The next prime is 42144421507. The reversal of 42144421503 is 30512444124.

It is an interprime number because it is at equal distance from previous prime (42144421499) and next prime (42144421507).

It is not a de Polignac number, because 42144421503 - 2² = 42144421499 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42144421507) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 19794343 + ... + 19796471.

It is an arithmetic number, because the mean of its divisors is an integer number (1818721800).

Almost surely, 2^42144421503 is an apocalyptic number.

42144421503 is a deficient number, since it is larger than the sum of its proper divisors (16054676097).

42144421503 is a wasteful number, since it uses less digits than its factorization.

42144421503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3591.

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 42144421503 its reverse (30512444124), we get a palindrome (72656865627).

The spelling of 42144421503 in words is "forty-two billion, one hundred forty-four million, four hundred twenty-one thousand, five hundred three".