85856415855 has 32 divisors (see below), whose sum is σ = 157061818368. Its totient is φ = 39231840000.

The previous prime is 85856415811. The next prime is 85856415857. The reversal of 85856415855 is 55851465858.

It is not a de Polignac number, because 85856415855 - 2⁶ = 85856415791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85856415857) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 72955 + ... + 420755.

It is an arithmetic number, because the mean of its divisors is an integer number (4908181824).

Almost surely, 2^85856415855 is an apocalyptic number.

85856415855 is a deficient number, since it is larger than the sum of its proper divisors (71205402513).

85856415855 is a wasteful number, since it uses less digits than its factorization.

85856415855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350167.

The product of its digits is 38400000, while the sum is 60.

The spelling of 85856415855 in words is "eighty-five billion, eight hundred fifty-six million, four hundred fifteen thousand, eight hundred fifty-five".