8198771524 has 6 divisors (see below), whose sum is σ = 14347850174. Its totient is φ = 4099385760.

The previous prime is 8198771513. The next prime is 8198771533. The reversal of 8198771524 is 4251778918.

It can be written as a sum of positive squares in only one way, i.e., 7162575424 + 1036196100 = 84632^2 + 32190^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1024846437 + ... + 1024846444.

Almost surely, 2^8198771524 is an apocalyptic number.

It is an amenable number.

8198771524 is a deficient number, since it is larger than the sum of its proper divisors (6149078650).

8198771524 is a wasteful number, since it uses less digits than its factorization.

8198771524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2049692885 (or 2049692883 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 52.

The square root of 8198771524 is about 90547.0680033318. The cubic root of 8198771524 is about 2016.4289686316.

The spelling of 8198771524 in words is "eight billion, one hundred ninety-eight million, seven hundred seventy-one thousand, five hundred twenty-four".