47984894892 has 144 divisors (see below), whose sum is σ = 144937447200. Its totient is φ = 13213562880.

The previous prime is 47984894857. The next prime is 47984894939. The reversal of 47984894892 is 29849848974.

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 47984894892.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 72334 + ... + 318122.

It is an arithmetic number, because the mean of its divisors is an integer number (1006510050).

Almost surely, 2^47984894892 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47984894892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72468723600).

47984894892 is an abundant number, since it is smaller than the sum of its proper divisors (96952552308).

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

47984894892 is a wasteful number, since it uses less digits than its factorization.

47984894892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245856 (or 245851 counting only the distinct ones).

The product of its digits is 334430208, while the sum is 72.

The spelling of 47984894892 in words is "forty-seven billion, nine hundred eighty-four million, eight hundred ninety-four thousand, eight hundred ninety-two".