285996172213 has 2 divisors, whose sum is σ = 285996172214. Its totient is φ = 285996172212.

The previous prime is 285996172207. The next prime is 285996172247. The reversal of 285996172213 is 312271699582.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 211414200804 + 74581971409 = 459798^2 + 273097^2 .

It is a cyclic number.

It is not a de Polignac number, because 285996172213 - 2³⁷ = 148557218741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (285996472213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142998086106 + 142998086107.

It is an arithmetic number, because the mean of its divisors is an integer number (142998086107).

Almost surely, 2^285996172213 is an apocalyptic number.

It is an amenable number.

285996172213 is a deficient number, since it is larger than the sum of its proper divisors (1).

285996172213 is an equidigital number, since it uses as much as digits as its factorization.

285996172213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3265920, while the sum is 55.

The spelling of 285996172213 in words is "two hundred eighty-five billion, nine hundred ninety-six million, one hundred seventy-two thousand, two hundred thirteen".