8678692961 has 2 divisors, whose sum is σ = 8678692962. Its totient is φ = 8678692960.

The previous prime is 8678692937. The next prime is 8678692987. The reversal of 8678692961 is 1692968768.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7663951936 + 1014741025 = 87544^2 + 31855^2 .

It is a cyclic number.

It is not a de Polignac number, because 8678692961 - 2¹⁴ = 8678676577 is a prime.

It is a super-2 number, since 2×8678692961² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 8678692894 and 8678692903.

It is not a weakly prime, because it can be changed into another prime (8678692921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4339346480 + 4339346481.

It is an arithmetic number, because the mean of its divisors is an integer number (4339346481).

Almost surely, 2^8678692961 is an apocalyptic number.

It is an amenable number.

8678692961 is a deficient number, since it is larger than the sum of its proper divisors (1).

8678692961 is an equidigital number, since it uses as much as digits as its factorization.

8678692961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15676416, while the sum is 62.

The square root of 8678692961 is about 93159.5027949377. The cubic root of 8678692961 is about 2055.0297243921.

The spelling of 8678692961 in words is "eight billion, six hundred seventy-eight million, six hundred ninety-two thousand, nine hundred sixty-one".