47043872488021 has 4 divisors (see below), whose sum is σ = 47116583265312. Its totient is φ = 46971161710732.

The previous prime is 47043872487961. The next prime is 47043872488057. The reversal of 47043872488021 is 12088427834074.

It is a happy number.

47043872488021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47043872488021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47043872488721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36355387675 + ... + 36355388968.

It is an arithmetic number, because the mean of its divisors is an integer number (11779145816328).

Almost surely, 2^{47043872488021} is an apocalyptic number.

It is an amenable number.

47043872488021 is a deficient number, since it is larger than the sum of its proper divisors (72710777291).

47043872488021 is an equidigital number, since it uses as much as digits as its factorization.

47043872488021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72710777290.

The product of its (nonzero) digits is 19267584, while the sum is 58.

The spelling of 47043872488021 in words is "forty-seven trillion, forty-three billion, eight hundred seventy-two million, four hundred eighty-eight thousand, twenty-one".