1678287296087 has 2 divisors, whose sum is σ = 1678287296088. Its totient is φ = 1678287296086.

The previous prime is 1678287296051. The next prime is 1678287296093. The reversal of 1678287296087 is 7806927828761.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1678287296087 - 2¹² = 1678287291991 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1678287296087.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1678287196087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 839143648043 + 839143648044.

It is an arithmetic number, because the mean of its divisors is an integer number (839143648044).

Almost surely, 2^{1678287296087} is an apocalyptic number.

1678287296087 is a deficient number, since it is larger than the sum of its proper divisors (1).

1678287296087 is an equidigital number, since it uses as much as digits as its factorization.

1678287296087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 227598336, while the sum is 71.

The spelling of 1678287296087 in words is "one trillion, six hundred seventy-eight billion, two hundred eighty-seven million, two hundred ninety-six thousand, eighty-seven".