5145242344521 has 16 divisors (see below), whose sum is σ = 7225658341440. Its totient is φ = 3247707234240.

The previous prime is 5145242344507. The next prime is 5145242344601. The reversal of 5145242344521 is 1254432425415.

It is not a de Polignac number, because 5145242344521 - 2⁹ = 5145242344009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5145242344321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26562510 + ... + 26755511.

It is an arithmetic number, because the mean of its divisors is an integer number (451603646340).

Almost surely, 2^{5145242344521} is an apocalyptic number.

It is an amenable number.

5145242344521 is a deficient number, since it is larger than the sum of its proper divisors (2080415996919).

5145242344521 is a wasteful number, since it uses less digits than its factorization.

5145242344521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53319736.

The product of its digits is 768000, while the sum is 42.

Adding to 5145242344521 its reverse (1254432425415), we get a palindrome (6399674769936).

The spelling of 5145242344521 in words is "five trillion, one hundred forty-five billion, two hundred forty-two million, three hundred forty-four thousand, five hundred twenty-one".