503436881413 has 2 divisors, whose sum is σ = 503436881414. Its totient is φ = 503436881412.

The previous prime is 503436881401. The next prime is 503436881419. The reversal of 503436881413 is 314188634305.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 441596133729 + 61840747684 = 664527^2 + 248678^2 .

It is a cyclic number.

It is not a de Polignac number, because 503436881413 - 2¹³ = 503436873221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (503436881419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251718440706 + 251718440707.

It is an arithmetic number, because the mean of its divisors is an integer number (251718440707).

Almost surely, 2^503436881413 is an apocalyptic number.

It is an amenable number.

503436881413 is a deficient number, since it is larger than the sum of its proper divisors (1).

503436881413 is an equidigital number, since it uses as much as digits as its factorization.

503436881413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 829440, while the sum is 46.

The spelling of 503436881413 in words is "five hundred three billion, four hundred thirty-six million, eight hundred eighty-one thousand, four hundred thirteen".