65387536285 has 8 divisors (see below), whose sum is σ = 78490898136. Its totient is φ = 52292792640.

The previous prime is 65387536261. The next prime is 65387536387. The reversal of 65387536285 is 58263578356.

It can be written as a sum of positive squares in 4 ways, for example, as 27735238521 + 37652297764 = 166539^2 + 194042^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-65387536285 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 2137846 + ... + 2168215.

It is an arithmetic number, because the mean of its divisors is an integer number (9811362267).

Almost surely, 2^65387536285 is an apocalyptic number.

It is an amenable number.

65387536285 is a deficient number, since it is larger than the sum of its proper divisors (13103361851).

65387536285 is a wasteful number, since it uses less digits than its factorization.

65387536285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4309103.

The product of its digits is 36288000, while the sum is 58.

The spelling of 65387536285 in words is "sixty-five billion, three hundred eighty-seven million, five hundred thirty-six thousand, two hundred eighty-five".