85850366873 has 4 divisors (see below), whose sum is σ = 85851504228. Its totient is φ = 85849229520.

The previous prime is 85850366869. The next prime is 85850366893. The reversal of 85850366873 is 37866305858.

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

It can be written as a sum of positive squares in 2 ways, for example, as 19455507289 + 66394859584 = 139483^2 + 257672^2 .

It is a cyclic number.

It is not a de Polignac number, because 85850366873 - 2² = 85850366869 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85850366893) 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, 446738 + ... + 609323.

It is an arithmetic number, because the mean of its divisors is an integer number (21462876057).

Almost surely, 2^85850366873 is an apocalyptic number.

It is an amenable number.

85850366873 is a deficient number, since it is larger than the sum of its proper divisors (1137355).

85850366873 is a wasteful number, since it uses less digits than its factorization.

85850366873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137354.

The product of its (nonzero) digits is 29030400, while the sum is 59.

The spelling of 85850366873 in words is "eighty-five billion, eight hundred fifty million, three hundred sixty-six thousand, eight hundred seventy-three".