47897969184 has 216 divisors, whose sum is σ = 148335664932. Its totient is φ = 14653716480.

The previous prime is 47897969173. The next prime is 47897969237. The reversal of 47897969184 is 48196979874.

47897969184 is a `hidden beast` number, since 478 + 9 + 79 + 6 + 9 + 1 + 84 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 361760400 + 47536208784 = 19020^2 + 218028^2 .

It is a Harshad number since it is a multiple of its sum of digits (72).

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 35 ways as a sum of consecutive naturals, for example, 8806914 + ... + 8812350.

Almost surely, 2^47897969184 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 47897969184, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74167832466).

47897969184 is an abundant number, since it is smaller than the sum of its proper divisors (100437695748).

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

47897969184 is a wasteful number, since it uses less digits than its factorization.

47897969184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5660 (or 5636 counting only the distinct ones).

The product of its digits is 219469824, while the sum is 72.

The spelling of 47897969184 in words is "forty-seven billion, eight hundred ninety-seven million, nine hundred sixty-nine thousand, one hundred eighty-four".