3811656413 has 2 divisors, whose sum is σ = 3811656414. Its totient is φ = 3811656412.

The previous prime is 3811656403. The next prime is 3811656427. The reversal of 3811656413 is 3146561183.

3811656413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2749743844 + 1061912569 = 52438^2 + 32587^2 .

It is an emirp because it is prime and its reverse (3146561183) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3811656413 - 2⁴ = 3811656397 is a prime.

It is a super-2 number, since 2×3811656413² = 29057449221528053138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3811656403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1905828206 + 1905828207.

It is an arithmetic number, because the mean of its divisors is an integer number (1905828207).

Almost surely, 2^3811656413 is an apocalyptic number.

It is an amenable number.

3811656413 is a deficient number, since it is larger than the sum of its proper divisors (1).

3811656413 is an equidigital number, since it uses as much as digits as its factorization.

3811656413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 38.

The square root of 3811656413 is about 61738.6136303691. The cubic root of 3811656413 is about 1562.0847118876.

The spelling of 3811656413 in words is "three billion, eight hundred eleven million, six hundred fifty-six thousand, four hundred thirteen".