8188314649 has 2 divisors, whose sum is σ = 8188314650. Its totient is φ = 8188314648.

The previous prime is 8188314601. The next prime is 8188314671. The reversal of 8188314649 is 9464138818.

8188314649 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7384308624 + 804006025 = 85932^2 + 28355^2 .

It is a cyclic number.

It is not a de Polignac number, because 8188314649 - 2²¹ = 8186217497 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8188314596 and 8188314605.

It is not a weakly prime, because it can be changed into another prime (8188314679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4094157324 + 4094157325.

It is an arithmetic number, because the mean of its divisors is an integer number (4094157325).

Almost surely, 2^8188314649 is an apocalyptic number.

It is an amenable number.

8188314649 is a deficient number, since it is larger than the sum of its proper divisors (1).

8188314649 is an equidigital number, since it uses as much as digits as its factorization.

8188314649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1327104, while the sum is 52.

The square root of 8188314649 is about 90489.3068213035. The cubic root of 8188314649 is about 2015.5713394825.

The spelling of 8188314649 in words is "eight billion, one hundred eighty-eight million, three hundred fourteen thousand, six hundred forty-nine".