6319924991 has 2 divisors, whose sum is σ = 6319924992. Its totient is φ = 6319924990.

The previous prime is 6319924987. The next prime is 6319924993. The reversal of 6319924991 is 1994299136.

It is a happy number.

6319924991 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 6319924991 - 2² = 6319924987 is a prime.

It is a Sophie Germain prime.

Together with 6319924993, 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 (6319924993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3159962495 + 3159962496.

It is an arithmetic number, because the mean of its divisors is an integer number (3159962496).

Almost surely, 2^6319924991 is an apocalyptic number.

6319924991 is a deficient number, since it is larger than the sum of its proper divisors (1).

6319924991 is an equidigital number, since it uses as much as digits as its factorization.

6319924991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 944784, while the sum is 53.

The square root of 6319924991 is about 79497.9558919599. The cubic root of 6319924991 is about 1848.8597786122.

The spelling of 6319924991 in words is "six billion, three hundred nineteen million, nine hundred twenty-four thousand, nine hundred ninety-one".