85865636441415 has 64 divisors (see below), whose sum is σ = 141591201776640. Its totient is φ = 44401664194560.

The previous prime is 85865636441401. The next prime is 85865636441419. The reversal of 85865636441415 is 51414463656858.

It is not a de Polignac number, because 85865636441415 - 2¹⁰ = 85865636440391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85865636441419) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 748103151 + ... + 748217919.

It is an arithmetic number, because the mean of its divisors is an integer number (2212362527760).

Almost surely, 2^{85865636441415} is an apocalyptic number.

85865636441415 is a deficient number, since it is larger than the sum of its proper divisors (55725565335225).

85865636441415 is a wasteful number, since it uses less digits than its factorization.

85865636441415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119512.

The product of its digits is 331776000, while the sum is 66.

The spelling of 85865636441415 in words is "eighty-five trillion, eight hundred sixty-five billion, six hundred thirty-six million, four hundred forty-one thousand, four hundred fifteen".