47966556021 has 8 divisors (see below), whose sum is σ = 63978684000. Its totient is φ = 31966066032.

The previous prime is 47966556013. The next prime is 47966556139. The reversal of 47966556021 is 12065566974.

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

It is not a de Polignac number, because 47966556021 - 2³ = 47966556013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47966556821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2899875 + ... + 2916368.

It is an arithmetic number, because the mean of its divisors is an integer number (7997335500).

Almost surely, 2^47966556021 is an apocalyptic number.

It is an amenable number.

47966556021 is a deficient number, since it is larger than the sum of its proper divisors (16012127979).

47966556021 is a wasteful number, since it uses less digits than its factorization.

47966556021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5818995.

The product of its (nonzero) digits is 2721600, while the sum is 51.

The spelling of 47966556021 in words is "forty-seven billion, nine hundred sixty-six million, five hundred fifty-six thousand, twenty-one".