8674551961 has 2 divisors, whose sum is σ = 8674551962. Its totient is φ = 8674551960.

The previous prime is 8674551947. The next prime is 8674551983. The reversal of 8674551961 is 1691554768.

8674551961 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5525097561 + 3149454400 = 74331^2 + 56120^2 .

It is a cyclic number.

It is not a de Polignac number, because 8674551961 - 2¹¹ = 8674549913 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8674551899 and 8674551908.

It is not a weakly prime, because it can be changed into another prime (8674551931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4337275980 + 4337275981.

It is an arithmetic number, because the mean of its divisors is an integer number (4337275981).

Almost surely, 2^8674551961 is an apocalyptic number.

It is an amenable number.

8674551961 is a deficient number, since it is larger than the sum of its proper divisors (1).

8674551961 is an equidigital number, since it uses as much as digits as its factorization.

8674551961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1814400, while the sum is 52.

The square root of 8674551961 is about 93137.2748205572. The cubic root of 8674551961 is about 2054.7028229424.

The spelling of 8674551961 in words is "eight billion, six hundred seventy-four million, five hundred fifty-one thousand, nine hundred sixty-one".