3877866613 has 2 divisors, whose sum is σ = 3877866614. Its totient is φ = 3877866612.

The previous prime is 3877866599. The next prime is 3877866649. The reversal of 3877866613 is 3166687783.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2925403569 + 952463044 = 54087^2 + 30862^2 .

It is a cyclic number.

It is not a de Polignac number, because 3877866613 - 2⁵ = 3877866581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3877866683) 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, 1938933306 + 1938933307.

It is an arithmetic number, because the mean of its divisors is an integer number (1938933307).

Almost surely, 2^3877866613 is an apocalyptic number.

It is an amenable number.

3877866613 is a deficient number, since it is larger than the sum of its proper divisors (1).

3877866613 is an equidigital number, since it uses as much as digits as its factorization.

3877866613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6096384, while the sum is 55.

The square root of 3877866613 is about 62272.5189228764. The cubic root of 3877866613 is about 1571.0775478280.

The spelling of 3877866613 in words is "three billion, eight hundred seventy-seven million, eight hundred sixty-six thousand, six hundred thirteen".