8214918553 has 2 divisors, whose sum is σ = 8214918554. Its totient is φ = 8214918552.

The previous prime is 8214918511. The next prime is 8214918601. The reversal of 8214918553 is 3558194128.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5747610969 + 2467307584 = 75813^2 + 49672^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8214918553 is a prime.

It is a super-2 number, since 2×8214918553² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8214910553) 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, 4107459276 + 4107459277.

It is an arithmetic number, because the mean of its divisors is an integer number (4107459277).

Almost surely, 2^8214918553 is an apocalyptic number.

It is an amenable number.

8214918553 is a deficient number, since it is larger than the sum of its proper divisors (1).

8214918553 is an equidigital number, since it uses as much as digits as its factorization.

8214918553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 345600, while the sum is 46.

The square root of 8214918553 is about 90636.1878776904. The cubic root of 8214918553 is about 2017.7518491666.

The spelling of 8214918553 in words is "eight billion, two hundred fourteen million, nine hundred eighteen thousand, five hundred fifty-three".