85865528764677 has 4 divisors (see below), whose sum is σ = 114487371686240. Its totient is φ = 57243685843116.

The previous prime is 85865528764661. The next prime is 85865528764739. The reversal of 85865528764677 is 77646782556858.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 85865528764677 - 2⁴ = 85865528764661 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85865528764677.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85865528764777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14310921460777 + ... + 14310921460782.

It is an arithmetic number, because the mean of its divisors is an integer number (28621842921560).

Almost surely, 2^{85865528764677} is an apocalyptic number.

It is an amenable number.

85865528764677 is a deficient number, since it is larger than the sum of its proper divisors (28621842921563).

85865528764677 is a wasteful number, since it uses less digits than its factorization.

85865528764677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28621842921562.

The product of its digits is 37933056000, while the sum is 84.

The spelling of 85865528764677 in words is "eighty-five trillion, eight hundred sixty-five billion, five hundred twenty-eight million, seven hundred sixty-four thousand, six hundred seventy-seven".