5208502988641 has 2 divisors, whose sum is σ = 5208502988642. Its totient is φ = 5208502988640.

The previous prime is 5208502988639. The next prime is 5208502988677. The reversal of 5208502988641 is 1468892058025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4691967549025 + 516535439616 = 2166095^2 + 718704^2 .

It is a cyclic number.

It is not a de Polignac number, because 5208502988641 - 2¹ = 5208502988639 is a prime.

Together with 5208502988639, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (5208502988681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2604251494320 + 2604251494321.

It is an arithmetic number, because the mean of its divisors is an integer number (2604251494321).

Almost surely, 2^{5208502988641} is an apocalyptic number.

It is an amenable number.

5208502988641 is a deficient number, since it is larger than the sum of its proper divisors (1).

5208502988641 is an equidigital number, since it uses as much as digits as its factorization.

5208502988641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11059200, while the sum is 58.

The spelling of 5208502988641 in words is "five trillion, two hundred eight billion, five hundred two million, nine hundred eighty-eight thousand, six hundred forty-one".