3661091771 has 2 divisors, whose sum is σ = 3661091772. Its totient is φ = 3661091770.

The previous prime is 3661091699. The next prime is 3661091801. The reversal of 3661091771 is 1771901663.

It is a happy number.

3661091771 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3661091771 - 2¹⁰ = 3661090747 is a prime.

It is not a weakly prime, because it can be changed into another prime (3661096771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1830545885 + 1830545886.

It is an arithmetic number, because the mean of its divisors is an integer number (1830545886).

Almost surely, 2^3661091771 is an apocalyptic number.

3661091771 is a deficient number, since it is larger than the sum of its proper divisors (1).

3661091771 is an equidigital number, since it uses as much as digits as its factorization.

3661091771 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47628, while the sum is 41.

The square root of 3661091771 is about 60506.9563851959. The cubic root of 3661091771 is about 1541.2397633235.

The spelling of 3661091771 in words is "three billion, six hundred sixty-one million, ninety-one thousand, seven hundred seventy-one".