918281819011 has 2 divisors, whose sum is σ = 918281819012. Its totient is φ = 918281819010.

The previous prime is 918281818957. The next prime is 918281819029. The reversal of 918281819011 is 110918182819.

It is a strong prime.

It is an emirp because it is prime and its reverse (110918182819) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-918281819011 is a prime.

It is a super-2 number, since 2×918281819011² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (918281819051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 459140909505 + 459140909506.

It is an arithmetic number, because the mean of its divisors is an integer number (459140909506).

Almost surely, 2^918281819011 is an apocalyptic number.

918281819011 is a deficient number, since it is larger than the sum of its proper divisors (1).

918281819011 is an equidigital number, since it uses as much as digits as its factorization.

918281819011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 49.

The spelling of 918281819011 in words is "nine hundred eighteen billion, two hundred eighty-one million, eight hundred nineteen thousand, eleven".