5148316778317 has 2 divisors, whose sum is σ = 5148316778318. Its totient is φ = 5148316778316.

The previous prime is 5148316778309. The next prime is 5148316778347. The reversal of 5148316778317 is 7138776138415.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4014068348196 + 1134248430121 = 2003514^2 + 1065011^2 .

It is a cyclic number.

It is not a de Polignac number, because 5148316778317 - 2³ = 5148316778309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5148316778347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2574158389158 + 2574158389159.

It is an arithmetic number, because the mean of its divisors is an integer number (2574158389159).

Almost surely, 2^{5148316778317} is an apocalyptic number.

It is an amenable number.

5148316778317 is a deficient number, since it is larger than the sum of its proper divisors (1).

5148316778317 is an equidigital number, since it uses as much as digits as its factorization.

5148316778317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23708160, while the sum is 61.

The spelling of 5148316778317 in words is "five trillion, one hundred forty-eight billion, three hundred sixteen million, seven hundred seventy-eight thousand, three hundred seventeen".