285618323453 has 2 divisors, whose sum is σ = 285618323454. Its totient is φ = 285618323452.

The previous prime is 285618323449. The next prime is 285618323483. The reversal of 285618323453 is 354323816582.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 273693246649 + 11925076804 = 523157^2 + 109202^2 .

It is a cyclic number.

It is not a de Polignac number, because 285618323453 - 2² = 285618323449 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (285618323483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142809161726 + 142809161727.

It is an arithmetic number, because the mean of its divisors is an integer number (142809161727).

Almost surely, 2^285618323453 is an apocalyptic number.

It is an amenable number.

285618323453 is a deficient number, since it is larger than the sum of its proper divisors (1).

285618323453 is an equidigital number, since it uses as much as digits as its factorization.

285618323453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4147200, while the sum is 50.

The spelling of 285618323453 in words is "two hundred eighty-five billion, six hundred eighteen million, three hundred twenty-three thousand, four hundred fifty-three".