502539389173 has 2 divisors, whose sum is σ = 502539389174. Its totient is φ = 502539389172.

The previous prime is 502539389117. The next prime is 502539389239. The reversal of 502539389173 is 371983935205.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 352672075044 + 149867314129 = 593862^2 + 387127^2 .

It is a cyclic number.

It is not a de Polignac number, because 502539389173 - 2¹⁷ = 502539258101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (502539689173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251269694586 + 251269694587.

It is an arithmetic number, because the mean of its divisors is an integer number (251269694587).

Almost surely, 2^502539389173 is an apocalyptic number.

It is an amenable number.

502539389173 is a deficient number, since it is larger than the sum of its proper divisors (1).

502539389173 is an equidigital number, since it uses as much as digits as its factorization.

502539389173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6123600, while the sum is 55.

The spelling of 502539389173 in words is "five hundred two billion, five hundred thirty-nine million, three hundred eighty-nine thousand, one hundred seventy-three".