8545876961 has 2 divisors, whose sum is σ = 8545876962. Its totient is φ = 8545876960.

The previous prime is 8545876957. The next prime is 8545876967. The reversal of 8545876961 is 1696785458.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7962171361 + 583705600 = 89231^2 + 24160^2 .

It is a cyclic number.

It is not a de Polignac number, because 8545876961 - 2² = 8545876957 is a prime.

It is a Sophie Germain prime.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 8545876961.

It is not a weakly prime, because it can be changed into another prime (8545876967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4272938480 + 4272938481.

It is an arithmetic number, because the mean of its divisors is an integer number (4272938481).

Almost surely, 2^8545876961 is an apocalyptic number.

It is an amenable number.

8545876961 is a deficient number, since it is larger than the sum of its proper divisors (1).

8545876961 is an equidigital number, since it uses as much as digits as its factorization.

8545876961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14515200, while the sum is 59.

The square root of 8545876961 is about 92443.9125145620. The cubic root of 8545876961 is about 2044.4926107737.

The spelling of 8545876961 in words is "eight billion, five hundred forty-five million, eight hundred seventy-six thousand, nine hundred sixty-one".