285928886329 has 2 divisors, whose sum is σ = 285928886330. Its totient is φ = 285928886328.

The previous prime is 285928886297. The next prime is 285928886377. The reversal of 285928886329 is 923688829582.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 280894700025 + 5034186304 = 529995^2 + 70952^2 .

It is a cyclic number.

It is not a de Polignac number, because 285928886329 - 2⁵ = 285928886297 is a prime.

It is not a weakly prime, because it can be changed into another prime (285928886389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142964443164 + 142964443165.

It is an arithmetic number, because the mean of its divisors is an integer number (142964443165).

Almost surely, 2^285928886329 is an apocalyptic number.

It is an amenable number.

285928886329 is a deficient number, since it is larger than the sum of its proper divisors (1).

285928886329 is an equidigital number, since it uses as much as digits as its factorization.

285928886329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 238878720, while the sum is 70.

The spelling of 285928886329 in words is "two hundred eighty-five billion, nine hundred twenty-eight million, eight hundred eighty-six thousand, three hundred twenty-nine".