3808516813 has 2 divisors, whose sum is σ = 3808516814. Its totient is φ = 3808516812.

The previous prime is 3808516759. The next prime is 3808516823. The reversal of 3808516813 is 3186158083.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3419559529 + 388957284 = 58477^2 + 19722^2 .

It is a cyclic number.

It is not a de Polignac number, because 3808516813 - 2¹⁷ = 3808385741 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3808516813.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3808516823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1904258406 + 1904258407.

It is an arithmetic number, because the mean of its divisors is an integer number (1904258407).

Almost surely, 2^3808516813 is an apocalyptic number.

It is an amenable number.

3808516813 is a deficient number, since it is larger than the sum of its proper divisors (1).

3808516813 is an equidigital number, since it uses as much as digits as its factorization.

3808516813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 138240, while the sum is 43.

The square root of 3808516813 is about 61713.1818414834. The cubic root of 3808516813 is about 1561.6557060711.

The spelling of 3808516813 in words is "three billion, eight hundred eight million, five hundred sixteen thousand, eight hundred thirteen".