5318371657 has 2 divisors, whose sum is σ = 5318371658. Its totient is φ = 5318371656.

The previous prime is 5318371651. The next prime is 5318371691. The reversal of 5318371657 is 7561738135.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5197833216 + 120538441 = 72096^2 + 10979^2 .

It is a cyclic number.

It is not a de Polignac number, because 5318371657 - 2¹⁹ = 5317847369 is a prime.

It is not a weakly prime, because it can be changed into another prime (5318371651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2659185828 + 2659185829.

It is an arithmetic number, because the mean of its divisors is an integer number (2659185829).

Almost surely, 2^5318371657 is an apocalyptic number.

It is an amenable number.

5318371657 is a deficient number, since it is larger than the sum of its proper divisors (1).

5318371657 is an equidigital number, since it uses as much as digits as its factorization.

5318371657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 529200, while the sum is 46.

The square root of 5318371657 is about 72927.1667967432. The cubic root of 5318371657 is about 1745.5256208125.

The spelling of 5318371657 in words is "five billion, three hundred eighteen million, three hundred seventy-one thousand, six hundred fifty-seven".