6420463506263 has 2 divisors, whose sum is σ = 6420463506264. Its totient is φ = 6420463506262.

The previous prime is 6420463506241. The next prime is 6420463506319. The reversal of 6420463506263 is 3626053640246.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6420463506263 - 2⁶ = 6420463506199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6420463509263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3210231753131 + 3210231753132.

It is an arithmetic number, because the mean of its divisors is an integer number (3210231753132).

Almost surely, 2^{6420463506263} is an apocalyptic number.

6420463506263 is a deficient number, since it is larger than the sum of its proper divisors (1).

6420463506263 is an equidigital number, since it uses as much as digits as its factorization.

6420463506263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3732480, while the sum is 47.

The spelling of 6420463506263 in words is "six trillion, four hundred twenty billion, four hundred sixty-three million, five hundred six thousand, two hundred sixty-three".