3781366741 has 2 divisors, whose sum is σ = 3781366742. Its totient is φ = 3781366740.

The previous prime is 3781366709. The next prime is 3781366769. The reversal of 3781366741 is 1476631873.

3781366741 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1977580900 + 1803785841 = 44470^2 + 42471^2 .

It is a cyclic number.

It is not a de Polignac number, because 3781366741 - 2⁵ = 3781366709 is a prime.

It is a super-2 number, since 2×3781366741² = 28597468859881922162, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3781366691 and 3781366700.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3781366781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1890683370 + 1890683371.

It is an arithmetic number, because the mean of its divisors is an integer number (1890683371).

Almost surely, 2^3781366741 is an apocalyptic number.

It is an amenable number.

3781366741 is a deficient number, since it is larger than the sum of its proper divisors (1).

3781366741 is an equidigital number, since it uses as much as digits as its factorization.

3781366741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 508032, while the sum is 46.

The square root of 3781366741 is about 61492.8186132332. The cubic root of 3781366741 is about 1557.9359538204.

The spelling of 3781366741 in words is "three billion, seven hundred eighty-one million, three hundred sixty-six thousand, seven hundred forty-one".