11928422287 has 2 divisors, whose sum is σ = 11928422288. Its totient is φ = 11928422286.

The previous prime is 11928422279. The next prime is 11928422333. The reversal of 11928422287 is 78222482911.

It is an a-pointer prime, because the next prime (11928422333) can be obtained adding 11928422287 to its sum of digits (46).

It is a weak prime.

It is an emirp because it is prime and its reverse (78222482911) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11928422287 - 2³ = 11928422279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11928422227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5964211143 + 5964211144.

It is an arithmetic number, because the mean of its divisors is an integer number (5964211144).

Almost surely, 2^11928422287 is an apocalyptic number.

11928422287 is a deficient number, since it is larger than the sum of its proper divisors (1).

11928422287 is an equidigital number, since it uses as much as digits as its factorization.

11928422287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 258048, while the sum is 46.

The spelling of 11928422287 in words is "eleven billion, nine hundred twenty-eight million, four hundred twenty-two thousand, two hundred eighty-seven".