8916711961 has 2 divisors, whose sum is σ = 8916711962. Its totient is φ = 8916711960.

The previous prime is 8916711941. The next prime is 8916712033. The reversal of 8916711961 is 1691176198.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5047249936 + 3869462025 = 71044^2 + 62205^2 .

It is a cyclic number.

It is not a de Polignac number, because 8916711961 - 2⁵ = 8916711929 is a prime.

It is not a weakly prime, because it can be changed into another prime (8916711911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4458355980 + 4458355981.

It is an arithmetic number, because the mean of its divisors is an integer number (4458355981).

Almost surely, 2^8916711961 is an apocalyptic number.

It is an amenable number.

8916711961 is a deficient number, since it is larger than the sum of its proper divisors (1).

8916711961 is an equidigital number, since it uses as much as digits as its factorization.

8916711961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 49.

The square root of 8916711961 is about 94428.3429961577. The cubic root of 8916711961 is about 2073.6474050229.

The spelling of 8916711961 in words is "eight billion, nine hundred sixteen million, seven hundred eleven thousand, nine hundred sixty-one".