67949284987 has 2 divisors, whose sum is σ = 67949284988. Its totient is φ = 67949284986.

The previous prime is 67949284981. The next prime is 67949285077. The reversal of 67949284987 is 78948294976.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 67949284987 - 2²³ = 67940896379 is a prime.

It is not a weakly prime, because it can be changed into another prime (67949284981) 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, 33974642493 + 33974642494.

It is an arithmetic number, because the mean of its divisors is an integer number (33974642494).

Almost surely, 2^67949284987 is an apocalyptic number.

67949284987 is a deficient number, since it is larger than the sum of its proper divisors (1).

67949284987 is an equidigital number, since it uses as much as digits as its factorization.

67949284987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 438939648, while the sum is 73.

The spelling of 67949284987 in words is "sixty-seven billion, nine hundred forty-nine million, two hundred eighty-four thousand, nine hundred eighty-seven".