500436100324421 has 2 divisors, whose sum is σ = 500436100324422. Its totient is φ = 500436100324420.

The previous prime is 500436100324417. The next prime is 500436100324471. The reversal of 500436100324421 is 124423001634005.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 448326037511521 + 52110062812900 = 21173711^2 + 7218730^2 .

It is a cyclic number.

It is not a de Polignac number, because 500436100324421 - 2² = 500436100324417 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (500436100324471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250218050162210 + 250218050162211.

It is an arithmetic number, because the mean of its divisors is an integer number (250218050162211).

Almost surely, 2^{500436100324421} is an apocalyptic number.

It is an amenable number.

500436100324421 is a deficient number, since it is larger than the sum of its proper divisors (1).

500436100324421 is an equidigital number, since it uses as much as digits as its factorization.

500436100324421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 35.

Adding to 500436100324421 its reverse (124423001634005), we get a palindrome (624859101958426).

The spelling of 500436100324421 in words is "five hundred trillion, four hundred thirty-six billion, one hundred million, three hundred twenty-four thousand, four hundred twenty-one".