85548570771 has 16 divisors (see below), whose sum is σ = 120136483584. Its totient is φ = 54042868704.

The previous prime is 85548570769. The next prime is 85548570823. The reversal of 85548570771 is 17707584558.

It is a happy number.

It is not a de Polignac number, because 85548570771 - 2¹ = 85548570769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85548570071) 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, 5786236 + ... + 5801001.

It is an arithmetic number, because the mean of its divisors is an integer number (7508530224).

Almost surely, 2^85548570771 is an apocalyptic number.

85548570771 is a deficient number, since it is larger than the sum of its proper divisors (34587912813).

85548570771 is a wasteful number, since it uses less digits than its factorization.

85548570771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11587370.

The product of its (nonzero) digits is 10976000, while the sum is 57.

The spelling of 85548570771 in words is "eighty-five billion, five hundred forty-eight million, five hundred seventy thousand, seven hundred seventy-one".