3115545115217 has 2 divisors, whose sum is σ = 3115545115218. Its totient is φ = 3115545115216.

The previous prime is 3115545115211. The next prime is 3115545115259. The reversal of 3115545115217 is 7125115455113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2136789074176 + 978756041041 = 1461776^2 + 989321^2 .

It is a cyclic number.

It is not a de Polignac number, because 3115545115217 - 2⁶ = 3115545115153 is a prime.

It is not a weakly prime, because it can be changed into another prime (3115545115211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1557772557608 + 1557772557609.

It is an arithmetic number, because the mean of its divisors is an integer number (1557772557609).

Almost surely, 2^{3115545115217} is an apocalyptic number.

It is an amenable number.

3115545115217 is a deficient number, since it is larger than the sum of its proper divisors (1).

3115545115217 is an equidigital number, since it uses as much as digits as its factorization.

3115545115217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105000, while the sum is 41.

The spelling of 3115545115217 in words is "three trillion, one hundred fifteen billion, five hundred forty-five million, one hundred fifteen thousand, two hundred seventeen".