85129482210865 has 12 divisors (see below), whose sum is σ = 106790027215284. Its totient is φ = 65142560298464.

The previous prime is 85129482210823. The next prime is 85129482210869. The reversal of 85129482210865 is 56801228492158.

It can be written as a sum of positive squares in 2 ways, for example, as 17524136481856 + 67605345729009 = 4186184^2 + 8222247^2 .

It is not a de Polignac number, because 85129482210865 - 2³¹ = 85127334727217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85129482210869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16092527074 + ... + 16092532363.

It is an arithmetic number, because the mean of its divisors is an integer number (8899168934607).

Almost surely, 2^{85129482210865} is an apocalyptic number.

It is an amenable number.

85129482210865 is a deficient number, since it is larger than the sum of its proper divisors (21660545004419).

85129482210865 is a wasteful number, since it uses less digits than its factorization.

85129482210865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32185059488 (or 32185059465 counting only the distinct ones).

The product of its (nonzero) digits is 22118400, while the sum is 61.

The spelling of 85129482210865 in words is "eighty-five trillion, one hundred twenty-nine billion, four hundred eighty-two million, two hundred ten thousand, eight hundred sixty-five".