478004550523 has 2 divisors, whose sum is σ = 478004550524. Its totient is φ = 478004550522.

The previous prime is 478004550521. The next prime is 478004550557. The reversal of 478004550523 is 325055400874.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 478004550523 - 2¹ = 478004550521 is a prime.

Together with 478004550521, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 478004550523.

It is not a weakly prime, because it can be changed into another prime (478004550521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239002275261 + 239002275262.

It is an arithmetic number, because the mean of its divisors is an integer number (239002275262).

Almost surely, 2^478004550523 is an apocalyptic number.

478004550523 is a deficient number, since it is larger than the sum of its proper divisors (1).

478004550523 is an equidigital number, since it uses as much as digits as its factorization.

478004550523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672000, while the sum is 43.

The spelling of 478004550523 in words is "four hundred seventy-eight billion, four million, five hundred fifty thousand, five hundred twenty-three".