287766441241 has 2 divisors, whose sum is σ = 287766441242. Its totient is φ = 287766441240.

The previous prime is 287766441229. The next prime is 287766441293. The reversal of 287766441241 is 142144667782.

It is an a-pointer prime, because the next prime (287766441293) can be obtained adding 287766441241 to its sum of digits (52).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 283018680025 + 4747761216 = 531995^2 + 68904^2 .

It is a cyclic number.

It is not a de Polignac number, because 287766441241 - 2⁹ = 287766440729 is a prime.

It is not a weakly prime, because it can be changed into another prime (287766441041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143883220620 + 143883220621.

It is an arithmetic number, because the mean of its divisors is an integer number (143883220621).

Almost surely, 2^287766441241 is an apocalyptic number.

It is an amenable number.

287766441241 is a deficient number, since it is larger than the sum of its proper divisors (1).

287766441241 is an equidigital number, since it uses as much as digits as its factorization.

287766441241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3612672, while the sum is 52.

The spelling of 287766441241 in words is "two hundred eighty-seven billion, seven hundred sixty-six million, four hundred forty-one thousand, two hundred forty-one".