118949216453 has 2 divisors, whose sum is σ = 118949216454. Its totient is φ = 118949216452.

The previous prime is 118949216437. The next prime is 118949216543. The reversal of 118949216453 is 354612949811.

Together with next prime (118949216543) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93894442084 + 25054774369 = 306422^2 + 158287^2 .

It is a cyclic number.

It is not a de Polignac number, because 118949216453 - 2⁴ = 118949216437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 118949216395 and 118949216404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118949212453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59474608226 + 59474608227.

It is an arithmetic number, because the mean of its divisors is an integer number (59474608227).

Almost surely, 2^118949216453 is an apocalyptic number.

It is an amenable number.

118949216453 is a deficient number, since it is larger than the sum of its proper divisors (1).

118949216453 is an equidigital number, since it uses as much as digits as its factorization.

118949216453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1866240, while the sum is 53.

The spelling of 118949216453 in words is "one hundred eighteen billion, nine hundred forty-nine million, two hundred sixteen thousand, four hundred fifty-three".