6400424971 has 2 divisors, whose sum is σ = 6400424972. Its totient is φ = 6400424970.

The previous prime is 6400424959. The next prime is 6400425041. The reversal of 6400424971 is 1794240046.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6400424971 - 2¹¹ = 6400422923 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6400424971.

It is not a weakly prime, because it can be changed into another prime (6400424941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3200212485 + 3200212486.

It is an arithmetic number, because the mean of its divisors is an integer number (3200212486).

Almost surely, 2^6400424971 is an apocalyptic number.

6400424971 is a deficient number, since it is larger than the sum of its proper divisors (1).

6400424971 is an equidigital number, since it uses as much as digits as its factorization.

6400424971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 6400424971 is about 80002.6560246596. The cubic root of 6400424971 is about 1856.6766271324.

The spelling of 6400424971 in words is "six billion, four hundred million, four hundred twenty-four thousand, nine hundred seventy-one".