478633649406 has 16 divisors (see below), whose sum is σ = 1044291598848. Its totient is φ = 145040499800.

The previous prime is 478633649399. The next prime is 478633649449. The reversal of 478633649406 is 604946336874.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 478633649406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3626012430 + ... + 3626012561.

It is an arithmetic number, because the mean of its divisors is an integer number (65268224928).

Almost surely, 2^478633649406 is an apocalyptic number.

478633649406 is an abundant number, since it is smaller than the sum of its proper divisors (565657949442).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

478633649406 is a wasteful number, since it uses less digits than its factorization.

478633649406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7252025007.

The product of its (nonzero) digits is 62705664, while the sum is 60.

The spelling of 478633649406 in words is "four hundred seventy-eight billion, six hundred thirty-three million, six hundred forty-nine thousand, four hundred six".