85900923205 has 8 divisors (see below), whose sum is σ = 103094321400. Its totient is φ = 68711929536.

The previous prime is 85900923191. The next prime is 85900923239. The reversal of 85900923205 is 50232900958.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 665536804 + 85235386401 = 25798^2 + 291951^2 .

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 85900923205 - 2²¹ = 85898826053 is a prime.

It is a congruent 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, 1058070 + ... + 1136359.

It is an arithmetic number, because the mean of its divisors is an integer number (12886790175).

Almost surely, 2^85900923205 is an apocalyptic number.

It is an amenable number.

85900923205 is a deficient number, since it is larger than the sum of its proper divisors (17193398195).

85900923205 is a wasteful number, since it uses less digits than its factorization.

85900923205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2202263.

The product of its (nonzero) digits is 194400, while the sum is 43.

The spelling of 85900923205 in words is "eighty-five billion, nine hundred million, nine hundred twenty-three thousand, two hundred five".