85476539709 has 16 divisors (see below), whose sum is σ = 138143903040. Its totient is φ = 51803963280.

The previous prime is 85476539671. The next prime is 85476539717. The reversal of 85476539709 is 90793567458.

It is not a de Polignac number, because 85476539709 - 2⁷ = 85476539581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85476539809) 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 15 ways as a sum of consecutive naturals, for example, 143899602 + ... + 143900195.

It is an arithmetic number, because the mean of its divisors is an integer number (8633993940).

Almost surely, 2^85476539709 is an apocalyptic number.

It is an amenable number.

85476539709 is a deficient number, since it is larger than the sum of its proper divisors (52667363331).

85476539709 is a wasteful number, since it uses less digits than its factorization.

85476539709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287799817 (or 287799811 counting only the distinct ones).

The product of its (nonzero) digits is 57153600, while the sum is 63.

The spelling of 85476539709 in words is "eighty-five billion, four hundred seventy-six million, five hundred thirty-nine thousand, seven hundred nine".