47521729547 has 4 divisors (see below), whose sum is σ = 47525544696. Its totient is φ = 47517914400.

The previous prime is 47521729531. The next prime is 47521729583. The reversal of 47521729547 is 74592712574.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 47521729547 - 2⁴ = 47521729531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47521729447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1888829 + ... + 1913822.

It is an arithmetic number, because the mean of its divisors is an integer number (11881386174).

Almost surely, 2^47521729547 is an apocalyptic number.

47521729547 is a deficient number, since it is larger than the sum of its proper divisors (3815149).

47521729547 is a wasteful number, since it uses less digits than its factorization.

47521729547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3815148.

The product of its digits is 4939200, while the sum is 53.

The spelling of 47521729547 in words is "forty-seven billion, five hundred twenty-one million, seven hundred twenty-nine thousand, five hundred forty-seven".