285885247541 has 2 divisors, whose sum is σ = 285885247542. Its totient is φ = 285885247540.

The previous prime is 285885247523. The next prime is 285885247567. The reversal of 285885247541 is 145742588582.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 282966546916 + 2918700625 = 531946^2 + 54025^2 .

It is a cyclic number.

It is not a de Polignac number, because 285885247541 - 2⁶ = 285885247477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (285885247741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142942623770 + 142942623771.

It is an arithmetic number, because the mean of its divisors is an integer number (142942623771).

Almost surely, 2^285885247541 is an apocalyptic number.

It is an amenable number.

285885247541 is a deficient number, since it is larger than the sum of its proper divisors (1).

285885247541 is an equidigital number, since it uses as much as digits as its factorization.

285885247541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28672000, while the sum is 59.

The spelling of 285885247541 in words is "two hundred eighty-five billion, eight hundred eighty-five million, two hundred forty-seven thousand, five hundred forty-one".