87671017867 has 2 divisors, whose sum is σ = 87671017868. Its totient is φ = 87671017866.

The previous prime is 87671017859. The next prime is 87671017873. The reversal of 87671017867 is 76871017678.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87671017867 - 2³ = 87671017859 is a prime.

It is not a weakly prime, because it can be changed into another prime (87671017267) 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, 43835508933 + 43835508934.

It is an arithmetic number, because the mean of its divisors is an integer number (43835508934).

Almost surely, 2^87671017867 is an apocalyptic number.

87671017867 is a deficient number, since it is larger than the sum of its proper divisors (1).

87671017867 is an equidigital number, since it uses as much as digits as its factorization.

87671017867 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5531904, while the sum is 58.

The spelling of 87671017867 in words is "eighty-seven billion, six hundred seventy-one million, seventeen thousand, eight hundred sixty-seven".