918358385843 has 2 divisors, whose sum is σ = 918358385844. Its totient is φ = 918358385842.

The previous prime is 918358385839. The next prime is 918358385873. The reversal of 918358385843 is 348583853819.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 918358385843 - 2² = 918358385839 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 918358385843.

It is not a weakly prime, because it can be changed into another prime (918358385803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 459179192921 + 459179192922.

It is an arithmetic number, because the mean of its divisors is an integer number (459179192922).

Almost surely, 2^918358385843 is an apocalyptic number.

918358385843 is a deficient number, since it is larger than the sum of its proper divisors (1).

918358385843 is an equidigital number, since it uses as much as digits as its factorization.

918358385843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 99532800, while the sum is 65.

The spelling of 918358385843 in words is "nine hundred eighteen billion, three hundred fifty-eight million, three hundred eighty-five thousand, eight hundred forty-three".