8134198277 has 2 divisors, whose sum is σ = 8134198278. Its totient is φ = 8134198276.

The previous prime is 8134198249. The next prime is 8134198309. The reversal of 8134198277 is 7728914318.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4501604836 + 3632593441 = 67094^2 + 60271^2 .

It is a cyclic number.

It is not a de Polignac number, because 8134198277 - 2⁶ = 8134198213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8134198577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4067099138 + 4067099139.

It is an arithmetic number, because the mean of its divisors is an integer number (4067099139).

Almost surely, 2^8134198277 is an apocalyptic number.

It is an amenable number.

8134198277 is a deficient number, since it is larger than the sum of its proper divisors (1).

8134198277 is an equidigital number, since it uses as much as digits as its factorization.

8134198277 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 677376, while the sum is 50.

The square root of 8134198277 is about 90189.7903146470. The cubic root of 8134198277 is about 2011.1212342004.

The spelling of 8134198277 in words is "eight billion, one hundred thirty-four million, one hundred ninety-eight thousand, two hundred seventy-seven".