47030322821 has 8 divisors (see below), whose sum is σ = 47308264920. Its totient is φ = 46752451072.

The previous prime is 47030322817. The next prime is 47030322827. The reversal of 47030322821 is 12822303074.

It can be written as a sum of positive squares in 4 ways, for example, as 10949320321 + 36081002500 = 104639^2 + 189950^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 47030322821 - 2² = 47030322817 is a prime.

It is a super-3 number, since 3×47030322821³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47030322827) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2000825 + ... + 2024193.

It is an arithmetic number, because the mean of its divisors is an integer number (5913533115).

Almost surely, 2^47030322821 is an apocalyptic number.

It is an amenable number.

47030322821 is a deficient number, since it is larger than the sum of its proper divisors (277942099).

47030322821 is a wasteful number, since it uses less digits than its factorization.

47030322821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35175.

The product of its (nonzero) digits is 16128, while the sum is 32.

Adding to 47030322821 its reverse (12822303074), we get a palindrome (59852625895).

The spelling of 47030322821 in words is "forty-seven billion, thirty million, three hundred twenty-two thousand, eight hundred twenty-one".