85865304567792 has 40 divisors (see below), whose sum is σ = 221848474717440. Its totient is φ = 28617926737600.

The previous prime is 85865304567773. The next prime is 85865304567817. The reversal of 85865304567792 is 29776540356858.

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, 119683992 + ... + 120399287.

It is an arithmetic number, because the mean of its divisors is an integer number (5546211867936).

Almost surely, 2^{85865304567792} is an apocalyptic number.

It is an amenable number.

85865304567792 is an abundant number, since it is smaller than the sum of its proper divisors (135983170149648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85865304567792 is a wasteful number, since it uses less digits than its factorization.

85865304567792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240090741 (or 240090735 counting only the distinct ones).

The product of its (nonzero) digits is 3048192000, while the sum is 75.

The spelling of 85865304567792 in words is "eighty-five trillion, eight hundred sixty-five billion, three hundred four million, five hundred sixty-seven thousand, seven hundred ninety-two".