478509853886 has 16 divisors (see below), whose sum is σ = 736158281040. Its totient is φ = 233137840320.

The previous prime is 478509853879. The next prime is 478509853889. The reversal of 478509853886 is 688358905874.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478509853889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3451616 + ... + 3587571.

It is an arithmetic number, because the mean of its divisors is an integer number (46009892565).

Almost surely, 2^478509853886 is an apocalyptic number.

478509853886 is a deficient number, since it is larger than the sum of its proper divisors (257648427154).

478509853886 is a wasteful number, since it uses less digits than its factorization.

478509853886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7040059.

The product of its (nonzero) digits is 464486400, while the sum is 71.

The spelling of 478509853886 in words is "four hundred seventy-eight billion, five hundred nine million, eight hundred fifty-three thousand, eight hundred eighty-six".