3618540613 has 2 divisors, whose sum is σ = 3618540614. Its totient is φ = 3618540612.

The previous prime is 3618540581. The next prime is 3618540617. The reversal of 3618540613 is 3160458163.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2642165604 + 976375009 = 51402^2 + 31247^2 .

It is a cyclic number.

It is not a de Polignac number, because 3618540613 - 2⁵ = 3618540581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3618540617) 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, 1809270306 + 1809270307.

It is an arithmetic number, because the mean of its divisors is an integer number (1809270307).

Almost surely, 2^3618540613 is an apocalyptic number.

It is an amenable number.

3618540613 is a deficient number, since it is larger than the sum of its proper divisors (1).

3618540613 is an equidigital number, since it uses as much as digits as its factorization.

3618540613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 3618540613 is about 60154.3066870528. The cubic root of 3618540613 is about 1535.2454435334.

Adding to 3618540613 its reverse (3160458163), we get a palindrome (6778998776).

The spelling of 3618540613 in words is "three billion, six hundred eighteen million, five hundred forty thousand, six hundred thirteen".