8961689688986 has 8 divisors (see below), whose sum is σ = 13454193283284. Its totient is φ = 4476958594560.

The previous prime is 8961689688977. The next prime is 8961689689009. The reversal of 8961689688986 is 6898869861698.

It can be written as a sum of positive squares in 2 ways, for example, as 8742636672025 + 219053016961 = 2956795^2 + 468031^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 8961689688895 and 8961689688904.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1943122085 + ... + 1943126696.

Almost surely, 2^{8961689688986} is an apocalyptic number.

8961689688986 is a deficient number, since it is larger than the sum of its proper divisors (4492503594298).

8961689688986 is a wasteful number, since it uses less digits than its factorization.

8961689688986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3886249936.

The product of its digits is 30958682112, while the sum is 92.

The spelling of 8961689688986 in words is "eight trillion, nine hundred sixty-one billion, six hundred eighty-nine million, six hundred eighty-eight thousand, nine hundred eighty-six".