478376862449 has 8 divisors (see below), whose sum is σ = 481039749960. Its totient is φ = 475715874816.

The previous prime is 478376862443. The next prime is 478376862527. The reversal of 478376862449 is 944268673874.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 313747857424 + 164629005025 = 560132^2 + 405745^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 478376862449 - 2⁸ = 478376862193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (478376862443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31517 + ... + 978645.

It is an arithmetic number, because the mean of its divisors is an integer number (60129968745).

Almost surely, 2^478376862449 is an apocalyptic number.

It is an amenable number.

478376862449 is a deficient number, since it is larger than the sum of its proper divisors (2662887511).

478376862449 is a wasteful number, since it uses less digits than its factorization.

478376862449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949939.

The product of its digits is 390168576, while the sum is 68.

The spelling of 478376862449 in words is "four hundred seventy-eight billion, three hundred seventy-six million, eight hundred sixty-two thousand, four hundred forty-nine".