1641946067 has 2 divisors, whose sum is σ = 1641946068. Its totient is φ = 1641946066.

The previous prime is 1641945953. The next prime is 1641946091. The reversal of 1641946067 is 7606491461.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1641946067 is a prime.

It is not a weakly prime, because it can be changed into another prime (1641948067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 820973033 + 820973034.

It is an arithmetic number, because the mean of its divisors is an integer number (820973034).

Almost surely, 2^1641946067 is an apocalyptic number.

1641946067 is a deficient number, since it is larger than the sum of its proper divisors (1).

1641946067 is an equidigital number, since it uses as much as digits as its factorization.

1641946067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 1641946067 is about 40520.9336886504. The cubic root of 1641946067 is about 1179.7399759814.

The spelling of 1641946067 in words is "one billion, six hundred forty-one million, nine hundred forty-six thousand, sixty-seven".