85369855239 has 6 divisors (see below), whose sum is σ = 123312013136. Its totient is φ = 56913236820.

The previous prime is 85369855211. The next prime is 85369855309. The reversal of 85369855239 is 93255896358.

85369855239 is a `hidden beast` number, since 8 + 536 + 98 + 5 + 5 + 2 + 3 + 9 = 666.

It is not a de Polignac number, because 85369855239 - 2¹⁹ = 85369330951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85369850239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4742769727 + ... + 4742769744.

Almost surely, 2^85369855239 is an apocalyptic number.

85369855239 is a deficient number, since it is larger than the sum of its proper divisors (37942157897).

85369855239 is a wasteful number, since it uses less digits than its factorization.

85369855239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9485539477 (or 9485539474 counting only the distinct ones).

The product of its digits is 69984000, while the sum is 63.

The spelling of 85369855239 in words is "eighty-five billion, three hundred sixty-nine million, eight hundred fifty-five thousand, two hundred thirty-nine".