538266907485 has 12 divisors (see below), whose sum is σ = 932995973052. Its totient is φ = 287075683968.

The previous prime is 538266907469. The next prime is 538266907523. The reversal of 538266907485 is 584709662835.

It is a happy number.

538266907485 is a `hidden beast` number, since 5 + 3 + 8 + 2 + 66 + 90 + 7 + 485 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 354580948089 + 183685959396 = 595467^2 + 428586^2 .

It is not a de Polignac number, because 538266907485 - 2⁴ = 538266907469 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5980743372 + ... + 5980743461.

It is an arithmetic number, because the mean of its divisors is an integer number (77749664421).

Almost surely, 2^538266907485 is an apocalyptic number.

It is an amenable number.

538266907485 is a deficient number, since it is larger than the sum of its proper divisors (394729065567).

538266907485 is a wasteful number, since it uses less digits than its factorization.

538266907485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11961486844 (or 11961486841 counting only the distinct ones).

The product of its (nonzero) digits is 87091200, while the sum is 63.

The spelling of 538266907485 in words is "five hundred thirty-eight billion, two hundred sixty-six million, nine hundred seven thousand, four hundred eighty-five".