47989971042 has 32 divisors (see below), whose sum is σ = 106697310720. Its totient is φ = 14289816960.

The previous prime is 47989971019. The next prime is 47989971083. The reversal of 47989971042 is 24017998974.

It is a super-2 number, since 2×47989971042² (a number of 22 digits) contains 22 as substring.

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, 9921067 + ... + 9925902.

It is an arithmetic number, because the mean of its divisors is an integer number (3334290960).

Almost surely, 2^47989971042 is an apocalyptic number.

47989971042 is an abundant number, since it is smaller than the sum of its proper divisors (58707339678).

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

47989971042 is a wasteful number, since it uses less digits than its factorization.

47989971042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19847018.

The product of its (nonzero) digits is 9144576, while the sum is 60.

The spelling of 47989971042 in words is "forty-seven billion, nine hundred eighty-nine million, nine hundred seventy-one thousand, forty-two".