818852480057 has 2 divisors, whose sum is σ = 818852480058. Its totient is φ = 818852480056.

The previous prime is 818852480041. The next prime is 818852480059. The reversal of 818852480057 is 750084258818.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 659987260816 + 158865219241 = 812396^2 + 398579^2 .

It is a cyclic number.

It is not a de Polignac number, because 818852480057 - 2⁴ = 818852480041 is a prime.

Together with 818852480059, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 818852479984 and 818852480011.

It is not a weakly prime, because it can be changed into another prime (818852480059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 409426240028 + 409426240029.

It is an arithmetic number, because the mean of its divisors is an integer number (409426240029).

Almost surely, 2^818852480057 is an apocalyptic number.

It is an amenable number.

818852480057 is a deficient number, since it is larger than the sum of its proper divisors (1).

818852480057 is an equidigital number, since it uses as much as digits as its factorization.

818852480057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5734400, while the sum is 56.

The spelling of 818852480057 in words is "eight hundred eighteen billion, eight hundred fifty-two million, four hundred eighty thousand, fifty-seven".