478408478409 has 24 divisors (see below), whose sum is σ = 693760677792. Its totient is φ = 317681663040.

The previous prime is 478408478399. The next prime is 478408478441. The reversal of 478408478409 is 904874804874.

478408478409 is a `hidden beast` number, since 4 + 7 + 84 + 0 + 84 + 78 + 409 = 666.

It is not a de Polignac number, because 478408478409 - 2⁵ = 478408478377 is a prime.

It is a super-2 number, since 2×478408478409² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (478408478479) 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, 6383734 + ... + 6458240.

It is an arithmetic number, because the mean of its divisors is an integer number (28906694908).

Almost surely, 2^478408478409 is an apocalyptic number.

It is an amenable number.

478408478409 is a deficient number, since it is larger than the sum of its proper divisors (215352199383).

478408478409 is a wasteful number, since it uses less digits than its factorization.

478408478409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77317 (or 77314 counting only the distinct ones).

The product of its (nonzero) digits is 57802752, while the sum is 63.

The spelling of 478408478409 in words is "four hundred seventy-eight billion, four hundred eight million, four hundred seventy-eight thousand, four hundred nine".