918190909841 has 2 divisors, whose sum is σ = 918190909842. Its totient is φ = 918190909840.

The previous prime is 918190909763. The next prime is 918190909903. The reversal of 918190909841 is 148909091819.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 913035669841 + 5155240000 = 955529^2 + 71800^2 .

It is a cyclic number.

It is not a de Polignac number, because 918190909841 - 2¹⁴ = 918190893457 is a prime.

It is not a weakly prime, because it can be changed into another prime (918198909841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 459095454920 + 459095454921.

It is an arithmetic number, because the mean of its divisors is an integer number (459095454921).

Almost surely, 2^918190909841 is an apocalyptic number.

It is an amenable number.

918190909841 is a deficient number, since it is larger than the sum of its proper divisors (1).

918190909841 is an equidigital number, since it uses as much as digits as its factorization.

918190909841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1679616, while the sum is 59.

The spelling of 918190909841 in words is "nine hundred eighteen billion, one hundred ninety million, nine hundred nine thousand, eight hundred forty-one".