47879831838 has 32 divisors (see below), whose sum is σ = 96676932096. Its totient is φ = 15807270528.

The previous prime is 47879831827. The next prime is 47879831851. The reversal of 47879831838 is 83813897874.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 939981 + ... + 989607.

It is an arithmetic number, because the mean of its divisors is an integer number (3021154128).

Almost surely, 2^47879831838 is an apocalyptic number.

47879831838 is an abundant number, since it is smaller than the sum of its proper divisors (48797100258).

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

47879831838 is a wasteful number, since it uses less digits than its factorization.

47879831838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51168.

The product of its digits is 65028096, while the sum is 66.

The spelling of 47879831838 in words is "forty-seven billion, eight hundred seventy-nine million, eight hundred thirty-one thousand, eight hundred thirty-eight".