918281819087 has 2 divisors, whose sum is σ = 918281819088. Its totient is φ = 918281819086.

The previous prime is 918281819051. The next prime is 918281819113. The reversal of 918281819087 is 780918182819.

It is a strong prime.

It is an emirp because it is prime and its reverse (780918182819) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 918281819087 - 2¹² = 918281814991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (918281818087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 459140909543 + 459140909544.

It is an arithmetic number, because the mean of its divisors is an integer number (459140909544).

Almost surely, 2^918281819087 is an apocalyptic number.

918281819087 is a deficient number, since it is larger than the sum of its proper divisors (1).

918281819087 is an equidigital number, since it uses as much as digits as its factorization.

918281819087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4644864, while the sum is 62.

The spelling of 918281819087 in words is "nine hundred eighteen billion, two hundred eighty-one million, eight hundred nineteen thousand, eighty-seven".