287327697949 has 2 divisors, whose sum is σ = 287327697950. Its totient is φ = 287327697948.

The previous prime is 287327697889. The next prime is 287327697973. The reversal of 287327697949 is 949796723782.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 287204887225 + 122810724 = 535915^2 + 11082^2 .

It is a cyclic number.

It is not a de Polignac number, because 287327697949 - 2¹³ = 287327689757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (287327697149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143663848974 + 143663848975.

It is an arithmetic number, because the mean of its divisors is an integer number (143663848975).

Almost surely, 2^287327697949 is an apocalyptic number.

It is an amenable number.

287327697949 is a deficient number, since it is larger than the sum of its proper divisors (1).

287327697949 is an equidigital number, since it uses as much as digits as its factorization.

287327697949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576108288, while the sum is 73.

The spelling of 287327697949 in words is "two hundred eighty-seven billion, three hundred twenty-seven million, six hundred ninety-seven thousand, nine hundred forty-nine".