85890209858 has 8 divisors (see below), whose sum is σ = 129099865152. Its totient is φ = 42856921476.

The previous prime is 85890209849. The next prime is 85890209869.

85890209858 is nontrivially palindromic in base 10.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 85890209858.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44090510 + ... + 44092457.

It is an arithmetic number, because the mean of its divisors is an integer number (16137483144).

Almost surely, 2^85890209858 is an apocalyptic number.

85890209858 is a deficient number, since it is larger than the sum of its proper divisors (43209655294).

85890209858 is a wasteful number, since it uses less digits than its factorization.

85890209858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88183456.

The product of its (nonzero) digits is 16588800, while the sum is 62.

The spelling of 85890209858 in words is "eighty-five billion, eight hundred ninety million, two hundred nine thousand, eight hundred fifty-eight".