867866555053 has 2 divisors, whose sum is σ = 867866555054. Its totient is φ = 867866555052.

The previous prime is 867866555027. The next prime is 867866555099. The reversal of 867866555053 is 350555668768.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 851785018084 + 16081536969 = 922922^2 + 126813^2 .

It is a cyclic number.

It is not a de Polignac number, because 867866555053 - 2¹⁷ = 867866423981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (867866555653) 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, 433933277526 + 433933277527.

It is an arithmetic number, because the mean of its divisors is an integer number (433933277527).

Almost surely, 2^867866555053 is an apocalyptic number.

It is an amenable number.

867866555053 is a deficient number, since it is larger than the sum of its proper divisors (1).

867866555053 is an equidigital number, since it uses as much as digits as its factorization.

867866555053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440000, while the sum is 64.

The spelling of 867866555053 in words is "eight hundred sixty-seven billion, eight hundred sixty-six million, five hundred fifty-five thousand, fifty-three".