3781134667 has 2 divisors, whose sum is σ = 3781134668. Its totient is φ = 3781134666.

The previous prime is 3781134647. The next prime is 3781134689. The reversal of 3781134667 is 7664311873.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3781134667 - 2²⁷ = 3646916939 is a prime.

It is not a weakly prime, because it can be changed into another prime (3781134647) 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, 1890567333 + 1890567334.

It is an arithmetic number, because the mean of its divisors is an integer number (1890567334).

Almost surely, 2^3781134667 is an apocalyptic number.

3781134667 is a deficient number, since it is larger than the sum of its proper divisors (1).

3781134667 is an equidigital number, since it uses as much as digits as its factorization.

3781134667 is an odious number, because the sum of its binary digits is odd.

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

The square root of 3781134667 is about 61490.9315834457. The cubic root of 3781134667 is about 1557.9040814093.

The spelling of 3781134667 in words is "three billion, seven hundred eighty-one million, one hundred thirty-four thousand, six hundred sixty-seven".