478257590871 has 24 divisors (see below), whose sum is σ = 731525558400. Its totient is φ = 300053339136.

The previous prime is 478257590813. The next prime is 478257590873. The reversal of 478257590871 is 178095752874.

478257590871 is a `hidden beast` number, since 478 + 2 + 5 + 7 + 5 + 90 + 8 + 71 = 666.

It is not a de Polignac number, because 478257590871 - 2⁶ = 478257590807 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 478257590799 and 478257590808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478257590873) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1440751 + ... + 1741343.

It is an arithmetic number, because the mean of its divisors is an integer number (30480231600).

Almost surely, 2^478257590871 is an apocalyptic number.

478257590871 is a deficient number, since it is larger than the sum of its proper divisors (253267967529).

478257590871 is a wasteful number, since it uses less digits than its factorization.

478257590871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311015 (or 311012 counting only the distinct ones).

The product of its (nonzero) digits is 39513600, while the sum is 63.

The spelling of 478257590871 in words is "four hundred seventy-eight billion, two hundred fifty-seven million, five hundred ninety thousand, eight hundred seventy-one".