478306982657 has 8 divisors (see below), whose sum is σ = 557792400000. Its totient is φ = 409977413412.

The previous prime is 478306982651. The next prime is 478306982677. The reversal of 478306982657 is 756289603874.

It is not a de Polignac number, because 478306982657 - 2¹⁸ = 478306720513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 478306982593 and 478306982602.

It is not an unprimeable number, because it can be changed into a prime (478306982651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 697240157 + ... + 697240842.

It is an arithmetic number, because the mean of its divisors is an integer number (69724050000).

Almost surely, 2^478306982657 is an apocalyptic number.

It is an amenable number.

478306982657 is a deficient number, since it is larger than the sum of its proper divisors (79485417343).

478306982657 is an equidigital number, since it uses as much as digits as its factorization.

478306982657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1394481020 (or 1394481006 counting only the distinct ones).

The product of its (nonzero) digits is 121927680, while the sum is 65.

The spelling of 478306982657 in words is "four hundred seventy-eight billion, three hundred six million, nine hundred eighty-two thousand, six hundred fifty-seven".