47446409021 has 8 divisors (see below), whose sum is σ = 51765456000. Its totient is φ = 43128318240.

The previous prime is 47446409009. The next prime is 47446409069. The reversal of 47446409021 is 12090464474.

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 47446409021 - 2³⁴ = 30266539837 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 47446409021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47446409921) 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, 133256 + ... + 335633.

It is an arithmetic number, because the mean of its divisors is an integer number (6470682000).

Almost surely, 2^47446409021 is an apocalyptic number.

It is an amenable number.

47446409021 is a deficient number, since it is larger than the sum of its proper divisors (4319046979).

47446409021 is a wasteful number, since it uses less digits than its factorization.

47446409021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478099.

The product of its (nonzero) digits is 193536, while the sum is 41.

The spelling of 47446409021 in words is "forty-seven billion, four hundred forty-six million, four hundred nine thousand, twenty-one".