6467940263 has 2 divisors, whose sum is σ = 6467940264. Its totient is φ = 6467940262.

The previous prime is 6467940197. The next prime is 6467940287. The reversal of 6467940263 is 3620497646.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6467940263 - 2⁸ = 6467940007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6467910263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3233970131 + 3233970132.

It is an arithmetic number, because the mean of its divisors is an integer number (3233970132).

Almost surely, 2^6467940263 is an apocalyptic number.

6467940263 is a deficient number, since it is larger than the sum of its proper divisors (1).

6467940263 is an equidigital number, since it uses as much as digits as its factorization.

6467940263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1306368, while the sum is 47.

The square root of 6467940263 is about 80423.5056622130. The cubic root of 6467940263 is about 1863.1822295863.

The spelling of 6467940263 in words is "six billion, four hundred sixty-seven million, nine hundred forty thousand, two hundred sixty-three".