85836724553217 has 16 divisors (see below), whose sum is σ = 124865666958528. Its totient is φ = 52017153377280.

The previous prime is 85836724553149. The next prime is 85836724553243. The reversal of 85836724553217 is 71235542763858.

It is not a de Polignac number, because 85836724553217 - 2⁷ = 85836724553089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85836724553267) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127256728 + ... + 127929465.

It is an arithmetic number, because the mean of its divisors is an integer number (7804104184908).

Almost surely, 2^{85836724553217} is an apocalyptic number.

It is an amenable number.

85836724553217 is a deficient number, since it is larger than the sum of its proper divisors (39028942405311).

85836724553217 is a wasteful number, since it uses less digits than its factorization.

85836724553217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255196400.

The product of its digits is 338688000, while the sum is 66.

The spelling of 85836724553217 in words is "eighty-five trillion, eight hundred thirty-six billion, seven hundred twenty-four million, five hundred fifty-three thousand, two hundred seventeen".