478328363825 has 24 divisors (see below), whose sum is σ = 638848678776. Its totient is φ = 353173824000.

The previous prime is 478328363771. The next prime is 478328363867. The reversal of 478328363825 is 528363823874.

It can be written as a sum of positive squares in 12 ways, for example, as 75123683569 + 403204680256 = 274087^2 + 634984^2 .

It is not a de Polignac number, because 478328363825 - 2¹⁶ = 478328298289 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2115755 + ... + 2330895.

It is an arithmetic number, because the mean of its divisors is an integer number (26618694949).

Almost surely, 2^478328363825 is an apocalyptic number.

It is an amenable number.

478328363825 is a deficient number, since it is larger than the sum of its proper divisors (160520314951).

478328363825 is a wasteful number, since it uses less digits than its factorization.

478328363825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222005 (or 222000 counting only the distinct ones).

The product of its digits is 46448640, while the sum is 59.

The spelling of 478328363825 in words is "four hundred seventy-eight billion, three hundred twenty-eight million, three hundred sixty-three thousand, eight hundred twenty-five".