285212919601 has 4 divisors (see below), whose sum is σ = 285498991732. Its totient is φ = 284926847472.

The previous prime is 285212919521. The next prime is 285212919611. The reversal of 285212919601 is 106919212582.

It is a happy number.

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 183436607025 + 101776312576 = 428295^2 + 319024^2 .

It is a cyclic number.

It is not a de Polignac number, because 285212919601 - 2¹³ = 285212911409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (285212919611) 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, 143034570 + ... + 143036563.

It is an arithmetic number, because the mean of its divisors is an integer number (71374747933).

Almost surely, 2^285212919601 is an apocalyptic number.

It is an amenable number.

285212919601 is a deficient number, since it is larger than the sum of its proper divisors (286072131).

285212919601 is an equidigital number, since it uses as much as digits as its factorization.

285212919601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286072130.

The product of its (nonzero) digits is 155520, while the sum is 46.

The spelling of 285212919601 in words is "two hundred eighty-five billion, two hundred twelve million, nine hundred nineteen thousand, six hundred one".