85942388585 has 8 divisors (see below), whose sum is σ = 103883647176. Its totient is φ = 68252056960.

The previous prime is 85942388561. The next prime is 85942388633. The reversal of 85942388585 is 58588324958.

It can be written as a sum of positive squares in 4 ways, for example, as 100420441 + 85841968144 = 10021^2 + 292988^2 .

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

It is not a de Polignac number, because 85942388585 - 2¹⁰ = 85942387561 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62730986 + ... + 62732355.

It is an arithmetic number, because the mean of its divisors is an integer number (12985455897).

Almost surely, 2^85942388585 is an apocalyptic number.

It is an amenable number.

85942388585 is a deficient number, since it is larger than the sum of its proper divisors (17941258591).

85942388585 is a wasteful number, since it uses less digits than its factorization.

85942388585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125463483.

The product of its digits is 110592000, while the sum is 65.

The spelling of 85942388585 in words is "eighty-five billion, nine hundred forty-two million, three hundred eighty-eight thousand, five hundred eighty-five".