7911168541 has 2 divisors, whose sum is σ = 7911168542. Its totient is φ = 7911168540.

The previous prime is 7911168511. The next prime is 7911168563. The reversal of 7911168541 is 1458611197.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6200932516 + 1710236025 = 78746^2 + 41355^2 .

It is a cyclic number.

It is not a de Polignac number, because 7911168541 - 2⁹ = 7911168029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7911168511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3955584270 + 3955584271.

It is an arithmetic number, because the mean of its divisors is an integer number (3955584271).

Almost surely, 2^7911168541 is an apocalyptic number.

It is an amenable number.

7911168541 is a deficient number, since it is larger than the sum of its proper divisors (1).

7911168541 is an equidigital number, since it uses as much as digits as its factorization.

7911168541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 43.

The square root of 7911168541 is about 88944.7499350018. The cubic root of 7911168541 is about 1992.5698087292.

The spelling of 7911168541 in words is "seven billion, nine hundred eleven million, one hundred sixty-eight thousand, five hundred forty-one".