478646416463 has 2 divisors, whose sum is σ = 478646416464. Its totient is φ = 478646416462.

The previous prime is 478646416427. The next prime is 478646416511. The reversal of 478646416463 is 364614646874.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 478646416463 - 2¹⁴ = 478646400079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (478646416063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239323208231 + 239323208232.

It is an arithmetic number, because the mean of its divisors is an integer number (239323208232).

Almost surely, 2^478646416463 is an apocalyptic number.

478646416463 is a deficient number, since it is larger than the sum of its proper divisors (1).

478646416463 is an equidigital number, since it uses as much as digits as its factorization.

478646416463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55738368, while the sum is 59.

The spelling of 478646416463 in words is "four hundred seventy-eight billion, six hundred forty-six million, four hundred sixteen thousand, four hundred sixty-three".