918191918359 has 2 divisors, whose sum is σ = 918191918360. Its totient is φ = 918191918358.

The previous prime is 918191918353. The next prime is 918191918377. The reversal of 918191918359 is 953819191819.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 918191918359 - 2⁵ = 918191918327 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 918191918359.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (918191918353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 459095959179 + 459095959180.

It is an arithmetic number, because the mean of its divisors is an integer number (459095959180).

Almost surely, 2^918191918359 is an apocalyptic number.

918191918359 is a deficient number, since it is larger than the sum of its proper divisors (1).

918191918359 is an equidigital number, since it uses as much as digits as its factorization.

918191918359 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6298560, while the sum is 64.

The spelling of 918191918359 in words is "nine hundred eighteen billion, one hundred ninety-one million, nine hundred eighteen thousand, three hundred fifty-nine".