3361642391 has 2 divisors, whose sum is σ = 3361642392. Its totient is φ = 3361642390.

The previous prime is 3361642367. The next prime is 3361642397. The reversal of 3361642391 is 1932461633.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3361642391 - 2²⁶ = 3294533527 is a prime.

It is a super-2 number, since 2×3361642391² = 22601279129936393762, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3361642397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1680821195 + 1680821196.

It is an arithmetic number, because the mean of its divisors is an integer number (1680821196).

Almost surely, 2^3361642391 is an apocalyptic number.

3361642391 is a deficient number, since it is larger than the sum of its proper divisors (1).

3361642391 is an equidigital number, since it uses as much as digits as its factorization.

3361642391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69984, while the sum is 38.

The square root of 3361642391 is about 57979.6722222539. The cubic root of 3361642391 is about 1498.0184784973.

The spelling of 3361642391 in words is "three billion, three hundred sixty-one million, six hundred forty-two thousand, three hundred ninety-one".