6401719147 has 2 divisors, whose sum is σ = 6401719148. Its totient is φ = 6401719146.

The previous prime is 6401719133. The next prime is 6401719171. The reversal of 6401719147 is 7419171046.

6401719147 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6401719147 is a prime.

It is not a weakly prime, because it can be changed into another prime (6401719547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3200859573 + 3200859574.

It is an arithmetic number, because the mean of its divisors is an integer number (3200859574).

Almost surely, 2^6401719147 is an apocalyptic number.

6401719147 is a deficient number, since it is larger than the sum of its proper divisors (1).

6401719147 is an equidigital number, since it uses as much as digits as its factorization.

6401719147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 6401719147 is about 80010.7439472975. The cubic root of 6401719147 is about 1856.8017596773.

The spelling of 6401719147 in words is "six billion, four hundred one million, seven hundred nineteen thousand, one hundred forty-seven".