85870853009 has 8 divisors (see below), whose sum is σ = 88045497288. Its totient is φ = 83700029440.

The previous prime is 85870852993. The next prime is 85870853021. The reversal of 85870853009 is 90035807858.

It can be written as a sum of positive squares in 4 ways, for example, as 10669857025 + 75200995984 = 103295^2 + 274228^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85870853009 - 2⁴ = 85870852993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85870853099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 909632 + ... + 999585.

It is an arithmetic number, because the mean of its divisors is an integer number (11005687161).

Almost surely, 2^85870853009 is an apocalyptic number.

It is an amenable number.

85870853009 is a deficient number, since it is larger than the sum of its proper divisors (2174644279).

85870853009 is a wasteful number, since it uses less digits than its factorization.

85870853009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1910355.

The product of its (nonzero) digits is 2419200, while the sum is 53.

The spelling of 85870853009 in words is "eighty-five billion, eight hundred seventy million, eight hundred fifty-three thousand, nine".