8551475986 has 4 divisors (see below), whose sum is σ = 12827213982. Its totient is φ = 4275737992.

The previous prime is 8551475963. The next prime is 8551475987. The reversal of 8551475986 is 6895741558.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 7431302025 + 1120173961 = 86205^2 + 33469^2 .

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 8551475986.

It is not an unprimeable number, because it can be changed into a prime (8551475987) 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, 2137868995 + ... + 2137868998.

Almost surely, 2^8551475986 is an apocalyptic number.

8551475986 is a deficient number, since it is larger than the sum of its proper divisors (4275737996).

8551475986 is a wasteful number, since it uses less digits than its factorization.

8551475986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4275737995.

The product of its digits is 12096000, while the sum is 58.

The square root of 8551475986 is about 92474.1909183314. The cubic root of 8551475986 is about 2044.9390118568.

The spelling of 8551475986 in words is "eight billion, five hundred fifty-one million, four hundred seventy-five thousand, nine hundred eighty-six".