6400000007 has 2 divisors, whose sum is σ = 6400000008. Its totient is φ = 6400000006.

The previous prime is 6399999959. The next prime is 6400000031. The reversal of 6400000007 is 7000000046.

6400000007 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 6400000007 - 2⁶ = 6399999943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6400000067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3200000003 + 3200000004.

It is an arithmetic number, because the mean of its divisors is an integer number (3200000004).

Almost surely, 2^6400000007 is an apocalyptic number.

6400000007 is a deficient number, since it is larger than the sum of its proper divisors (1).

6400000007 is an equidigital number, since it uses as much as digits as its factorization.

6400000007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 6400000007 is about 80000.0000437500. Note that the first 4 decimals coincide. The cubic root of 6400000007 is about 1856.6355341220.

It can be divided in two parts, 6 and 400000007, that multiplied together give a palindrome (2400000042).

The spelling of 6400000007 in words is "six billion, four hundred million, seven", and thus it is an aban number.