27984027007 has 2 divisors, whose sum is σ = 27984027008. Its totient is φ = 27984027006.

The previous prime is 27984026989. The next prime is 27984027053. The reversal of 27984027007 is 70072048972.

It is an a-pointer prime, because the next prime (27984027053) can be obtained adding 27984027007 to its sum of digits (46).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27984027007 - 2¹⁵ = 27983994239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27984127007) 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, 13992013503 + 13992013504.

It is an arithmetic number, because the mean of its divisors is an integer number (13992013504).

Almost surely, 2^27984027007 is an apocalyptic number.

27984027007 is a deficient number, since it is larger than the sum of its proper divisors (1).

27984027007 is an equidigital number, since it uses as much as digits as its factorization.

27984027007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 395136, while the sum is 46.

The spelling of 27984027007 in words is "twenty-seven billion, nine hundred eighty-four million, twenty-seven thousand, seven".