5618493817 has 2 divisors, whose sum is σ = 5618493818. Its totient is φ = 5618493816.

The previous prime is 5618493809. The next prime is 5618493823. The reversal of 5618493817 is 7183948165.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4263959401 + 1354534416 = 65299^2 + 36804^2 .

It is a cyclic number.

It is not a de Polignac number, because 5618493817 - 2³ = 5618493809 is a prime.

It is not a weakly prime, because it can be changed into another prime (5618493887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2809246908 + 2809246909.

It is an arithmetic number, because the mean of its divisors is an integer number (2809246909).

Almost surely, 2^5618493817 is an apocalyptic number.

It is an amenable number.

5618493817 is a deficient number, since it is larger than the sum of its proper divisors (1).

5618493817 is an equidigital number, since it uses as much as digits as its factorization.

5618493817 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1451520, while the sum is 52.

The square root of 5618493817 is about 74956.6128970620. The cubic root of 5618493817 is about 1777.7607047829.

The spelling of 5618493817 in words is "five billion, six hundred eighteen million, four hundred ninety-three thousand, eight hundred seventeen".