47278838418 has 16 divisors (see below), whose sum is σ = 108065916480. Its totient is φ = 13508239536.

The previous prime is 47278838371. The next prime is 47278838437. The reversal of 47278838418 is 81483887274.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 562843273 + ... + 562843356.

It is an arithmetic number, because the mean of its divisors is an integer number (6754119780).

Almost surely, 2^47278838418 is an apocalyptic number.

47278838418 is an abundant number, since it is smaller than the sum of its proper divisors (60787078062).

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

47278838418 is a wasteful number, since it uses less digits than its factorization.

47278838418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1125686641.

The product of its digits is 19267584, while the sum is 60.

The spelling of 47278838418 in words is "forty-seven billion, two hundred seventy-eight million, eight hundred thirty-eight thousand, four hundred eighteen".