478012798561 has 2 divisors, whose sum is σ = 478012798562. Its totient is φ = 478012798560.

The previous prime is 478012798559. The next prime is 478012798609. The reversal of 478012798561 is 165897210874.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 382225643536 + 95787155025 = 618244^2 + 309495^2 .

It is a cyclic number.

It is not a de Polignac number, because 478012798561 - 2¹ = 478012798559 is a prime.

Together with 478012798559, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 478012798496 and 478012798505.

It is not a weakly prime, because it can be changed into another prime (478012798261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239006399280 + 239006399281.

It is an arithmetic number, because the mean of its divisors is an integer number (239006399281).

Almost surely, 2^478012798561 is an apocalyptic number.

It is an amenable number.

478012798561 is a deficient number, since it is larger than the sum of its proper divisors (1).

478012798561 is an equidigital number, since it uses as much as digits as its factorization.

478012798561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6773760, while the sum is 58.

The spelling of 478012798561 in words is "four hundred seventy-eight billion, twelve million, seven hundred ninety-eight thousand, five hundred sixty-one".