8548818121 has 2 divisors, whose sum is σ = 8548818122. Its totient is φ = 8548818120.

The previous prime is 8548818097. The next prime is 8548818127. The reversal of 8548818121 is 1218188458.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6369795721 + 2179022400 = 79811^2 + 46680^2 .

It is a cyclic number.

It is not a de Polignac number, because 8548818121 - 2⁹ = 8548817609 is a prime.

It is not a weakly prime, because it can be changed into another prime (8548818127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4274409060 + 4274409061.

It is an arithmetic number, because the mean of its divisors is an integer number (4274409061).

Almost surely, 2^8548818121 is an apocalyptic number.

It is an amenable number.

8548818121 is a deficient number, since it is larger than the sum of its proper divisors (1).

8548818121 is an equidigital number, since it uses as much as digits as its factorization.

8548818121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163840, while the sum is 46.

The square root of 8548818121 is about 92459.8189539651. The cubic root of 8548818121 is about 2044.7271289401.

The spelling of 8548818121 in words is "eight billion, five hundred forty-eight million, eight hundred eighteen thousand, one hundred twenty-one".