85470525771 has 4 divisors (see below), whose sum is σ = 113960701032. Its totient is φ = 56980350512.

The previous prime is 85470525769. The next prime is 85470525797. The reversal of 85470525771 is 17752507458.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85470525771 - 2¹ = 85470525769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85470520771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14245087626 + ... + 14245087631.

It is an arithmetic number, because the mean of its divisors is an integer number (28490175258).

Almost surely, 2^85470525771 is an apocalyptic number.

85470525771 is a deficient number, since it is larger than the sum of its proper divisors (28490175261).

85470525771 is a wasteful number, since it uses less digits than its factorization.

85470525771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28490175260.

The product of its (nonzero) digits is 2744000, while the sum is 51.

The spelling of 85470525771 in words is "eighty-five billion, four hundred seventy million, five hundred twenty-five thousand, seven hundred seventy-one".