6291999941 has 2 divisors, whose sum is σ = 6291999942. Its totient is φ = 6291999940.

The previous prime is 6291999919. The next prime is 6291999943. The reversal of 6291999941 is 1499991926.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3536799841 + 2755200100 = 59471^2 + 52490^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6291999941 is a prime.

Together with 6291999943, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6291999943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3145999970 + 3145999971.

It is an arithmetic number, because the mean of its divisors is an integer number (3145999971).

Almost surely, 2^6291999941 is an apocalyptic number.

It is an amenable number.

6291999941 is a deficient number, since it is larger than the sum of its proper divisors (1).

6291999941 is an equidigital number, since it uses as much as digits as its factorization.

6291999941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2834352, while the sum is 59.

The square root of 6291999941 is about 79322.1276883065. The cubic root of 6291999941 is about 1846.1326506816.

The spelling of 6291999941 in words is "six billion, two hundred ninety-one million, nine hundred ninety-nine thousand, nine hundred forty-one".