859605268201 has 3 divisors (see below), whose sum is σ = 859606195351. Its totient is φ = 859604341052.

The previous prime is 859605268189. The next prime is 859605268261. The reversal of 859605268201 is 102862506958.

The square root of 859605268201 is 927149.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 770622378201 + 88982890000 = 877851^2 + 298300^2 .

It is not a de Polignac number, because 859605268201 - 2¹¹ = 859605266153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (859605268261) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 463575 + ... + 1390723.

Almost surely, 2^859605268201 is an apocalyptic number.

859605268201 is the 927149-th square number.

859605268201 is the 463575-th centered octagonal number.

It is an amenable number.

859605268201 is a deficient number, since it is larger than the sum of its proper divisors (927150).

859605268201 is an frugal number, since it uses more digits than its factorization.

859605268201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1854298 (or 927149 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 52.

The spelling of 859605268201 in words is "eight hundred fifty-nine billion, six hundred five million, two hundred sixty-eight thousand, two hundred one".