478871814577 has 6 divisors (see below), whose sum is σ = 518541669222. Its totient is φ = 442035520992.

The previous prime is 478871814569. The next prime is 478871814587. The reversal of 478871814577 is 775418178874.

It can be written as a sum of positive squares in 3 ways, for example, as 62180908321 + 416690906256 = 249361^2 + 645516^2 .

It is not a de Polignac number, because 478871814577 - 2³ = 478871814569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (478871814587) 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 5 ways as a sum of consecutive naturals, for example, 1416780348 + ... + 1416780685.

It is an arithmetic number, because the mean of its divisors is an integer number (86423611537).

Almost surely, 2^478871814577 is an apocalyptic number.

It is an amenable number.

478871814577 is a deficient number, since it is larger than the sum of its proper divisors (39669854645).

478871814577 is a wasteful number, since it uses less digits than its factorization.

478871814577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2833561059 (or 2833561046 counting only the distinct ones).

The product of its digits is 98344960, while the sum is 67.

The spelling of 478871814577 in words is "four hundred seventy-eight billion, eight hundred seventy-one million, eight hundred fourteen thousand, five hundred seventy-seven".