3768489691 has 2 divisors, whose sum is σ = 3768489692. Its totient is φ = 3768489690.

The previous prime is 3768489623. The next prime is 3768489719. The reversal of 3768489691 is 1969848673.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3768489691 - 2¹¹ = 3768487643 is a prime.

It is not a weakly prime, because it can be changed into another prime (3768486691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1884244845 + 1884244846.

It is an arithmetic number, because the mean of its divisors is an integer number (1884244846).

Almost surely, 2^3768489691 is an apocalyptic number.

3768489691 is a deficient number, since it is larger than the sum of its proper divisors (1).

3768489691 is an equidigital number, since it uses as much as digits as its factorization.

3768489691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15676416, while the sum is 61.

The square root of 3768489691 is about 61388.0256320400. The cubic root of 3768489691 is about 1556.1654797815.

The spelling of 3768489691 in words is "three billion, seven hundred sixty-eight million, four hundred eighty-nine thousand, six hundred ninety-one".