212285342593 has 4 divisors (see below), whose sum is σ = 212288938308. Its totient is φ = 212281746880.

The previous prime is 212285342579. The next prime is 212285342609. The reversal of 212285342593 is 395243582212.

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 211063979889 + 1221362704 = 459417^2 + 34948^2 .

It is a cyclic number.

It is not a de Polignac number, because 212285342593 - 2⁵ = 212285342561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212285342393) 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, 1707796 + ... + 1827877.

It is an arithmetic number, because the mean of its divisors is an integer number (53072234577).

Almost surely, 2^212285342593 is an apocalyptic number.

It is an amenable number.

212285342593 is a deficient number, since it is larger than the sum of its proper divisors (3595715).

212285342593 is an equidigital number, since it uses as much as digits as its factorization.

212285342593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3595714.

The product of its digits is 1036800, while the sum is 46.

The spelling of 212285342593 in words is "two hundred twelve billion, two hundred eighty-five million, three hundred forty-two thousand, five hundred ninety-three".