9118797494423 has 2 divisors, whose sum is σ = 9118797494424. Its totient is φ = 9118797494422.

The previous prime is 9118797494369. The next prime is 9118797494453. The reversal of 9118797494423 is 3244947978119.

9118797494423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (3244947978119) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9118797494423 - 2³² = 9114502527127 is a prime.

It is a super-2 number, since 2×9118797494423² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9118797494453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4559398747211 + 4559398747212.

It is an arithmetic number, because the mean of its divisors is an integer number (4559398747212).

Almost surely, 2^{9118797494423} is an apocalyptic number.

9118797494423 is a deficient number, since it is larger than the sum of its proper divisors (1).

9118797494423 is an equidigital number, since it uses as much as digits as its factorization.

9118797494423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 109734912, while the sum is 68.

The spelling of 9118797494423 in words is "nine trillion, one hundred eighteen billion, seven hundred ninety-seven million, four hundred ninety-four thousand, four hundred twenty-three".