503451344240491 has 16 divisors (see below), whose sum is σ = 540086575564800. Its totient is φ = 467602224156288.

The previous prime is 503451344240447. The next prime is 503451344240563. The reversal of 503451344240491 is 194042443154305.

It is not a de Polignac number, because 503451344240491 - 2⁷ = 503451344240363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (503451344240291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92054355 + ... + 97369948.

It is an arithmetic number, because the mean of its divisors is an integer number (33755410972800).

Almost surely, 2^{503451344240491} is an apocalyptic number.

503451344240491 is a deficient number, since it is larger than the sum of its proper divisors (36635231324309).

503451344240491 is a wasteful number, since it uses less digits than its factorization.

503451344240491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189426378.

The product of its (nonzero) digits is 4147200, while the sum is 49.

Adding to 503451344240491 its reverse (194042443154305), we get a palindrome (697493787394796).

The spelling of 503451344240491 in words is "five hundred three trillion, four hundred fifty-one billion, three hundred forty-four million, two hundred forty thousand, four hundred ninety-one".