4549915813 has 2 divisors, whose sum is σ = 4549915814. Its totient is φ = 4549915812.

The previous prime is 4549915801. The next prime is 4549915817. The reversal of 4549915813 is 3185199454.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4532924929 + 16990884 = 67327^2 + 4122^2 .

It is a cyclic number.

It is not a de Polignac number, because 4549915813 - 2⁹ = 4549915301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4549915817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2274957906 + 2274957907.

It is an arithmetic number, because the mean of its divisors is an integer number (2274957907).

Almost surely, 2^4549915813 is an apocalyptic number.

It is an amenable number.

4549915813 is a deficient number, since it is larger than the sum of its proper divisors (1).

4549915813 is an equidigital number, since it uses as much as digits as its factorization.

4549915813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 777600, while the sum is 49.

The square root of 4549915813 is about 67453.0637777114. The cubic root of 4549915813 is about 1657.0455763129.

The spelling of 4549915813 in words is "four billion, five hundred forty-nine million, nine hundred fifteen thousand, eight hundred thirteen".