85807887034565 has 16 divisors (see below), whose sum is σ = 107454735820800. Its totient is φ = 65656591938432.

The previous prime is 85807887034561. The next prime is 85807887034601. The reversal of 85807887034565 is 56543078870858.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 85807887034565 - 2² = 85807887034561 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85807887034492 and 85807887034501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85807887034561) 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, 27463205 + ... + 30427674.

It is an arithmetic number, because the mean of its divisors is an integer number (6715920988800).

Almost surely, 2^{85807887034565} is an apocalyptic number.

It is an amenable number.

85807887034565 is a deficient number, since it is larger than the sum of its proper divisors (21646848786235).

85807887034565 is a wasteful number, since it uses less digits than its factorization.

85807887034565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57903796.

The product of its (nonzero) digits is 1806336000, while the sum is 74.

The spelling of 85807887034565 in words is "eighty-five trillion, eight hundred seven billion, eight hundred eighty-seven million, thirty-four thousand, five hundred sixty-five".