47897785938 has 32 divisors (see below), whose sum is σ = 100852128000. Its totient is φ = 15123414096.

The previous prime is 47897785927. The next prime is 47897785981. The reversal of 47897785938 is 83958779874.

It is a self number, because there is not a number n which added to its sum of digits gives 47897785938.

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 15 ways as a sum of consecutive naturals, for example, 872013 + ... + 925311.

It is an arithmetic number, because the mean of its divisors is an integer number (3151629000).

Almost surely, 2^47897785938 is an apocalyptic number.

47897785938 is an abundant number, since it is smaller than the sum of its proper divisors (52954342062).

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

47897785938 is a wasteful number, since it uses less digits than its factorization.

47897785938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61206.

The product of its digits is 853493760, while the sum is 75.

The spelling of 47897785938 in words is "forty-seven billion, eight hundred ninety-seven million, seven hundred eighty-five thousand, nine hundred thirty-eight".