6401851207 has 2 divisors, whose sum is σ = 6401851208. Its totient is φ = 6401851206.

The previous prime is 6401851201. The next prime is 6401851229. The reversal of 6401851207 is 7021581046.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6401851207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6401851201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3200925603 + 3200925604.

It is an arithmetic number, because the mean of its divisors is an integer number (3200925604).

Almost surely, 2^6401851207 is an apocalyptic number.

6401851207 is a deficient number, since it is larger than the sum of its proper divisors (1).

6401851207 is an equidigital number, since it uses as much as digits as its factorization.

6401851207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 6401851207 is about 80011.5692072090. The cubic root of 6401851207 is about 1856.8145274744.

The spelling of 6401851207 in words is "six billion, four hundred one million, eight hundred fifty-one thousand, two hundred seven".