5457181361 has 2 divisors, whose sum is σ = 5457181362. Its totient is φ = 5457181360.

The previous prime is 5457181351. The next prime is 5457181381. The reversal of 5457181361 is 1631817545.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5333526961 + 123654400 = 73031^2 + 11120^2 .

It is a cyclic number.

It is not a de Polignac number, because 5457181361 - 2¹⁸ = 5456919217 is a prime.

It is not a weakly prime, because it can be changed into another prime (5457181351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2728590680 + 2728590681.

It is an arithmetic number, because the mean of its divisors is an integer number (2728590681).

Almost surely, 2^5457181361 is an apocalyptic number.

It is an amenable number.

5457181361 is a deficient number, since it is larger than the sum of its proper divisors (1).

5457181361 is an equidigital number, since it uses as much as digits as its factorization.

5457181361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 100800, while the sum is 41.

The square root of 5457181361 is about 73872.7376032593. The cubic root of 5457181361 is about 1760.5814798055.

The spelling of 5457181361 in words is "five billion, four hundred fifty-seven million, one hundred eighty-one thousand, three hundred sixty-one".