8968517986 has 16 divisors (see below), whose sum is σ = 13876725240. Its totient is φ = 4344001920.

The previous prime is 8968517983. The next prime is 8968518001. The reversal of 8968517986 is 6897158698.

It can be written as a sum of positive squares in 4 ways, for example, as 8877219961 + 91298025 = 94219^2 + 9555^2 .

It is not an unprimeable number, because it can be changed into a prime (8968517983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247675 + ... + 281566.

Almost surely, 2^8968517986 is an apocalyptic number.

8968517986 is a deficient number, since it is larger than the sum of its proper divisors (4908207254).

8968517986 is a wasteful number, since it uses less digits than its factorization.

8968517986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529509.

The product of its digits is 52254720, while the sum is 67.

The square root of 8968517986 is about 94702.2596668105. The cubic root of 8968517986 is about 2077.6556107341.

The spelling of 8968517986 in words is "eight billion, nine hundred sixty-eight million, five hundred seventeen thousand, nine hundred eighty-six".