47308316921 has 8 divisors (see below), whose sum is σ = 47774577600. Its totient is φ = 46842503248.

The previous prime is 47308316903. The next prime is 47308316953. The reversal of 47308316921 is 12961380374.

47308316921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 47308316921 - 2⁶ = 47308316857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47308316021) 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, 102980 + ... + 324378.

It is an arithmetic number, because the mean of its divisors is an integer number (5971822200).

Almost surely, 2^47308316921 is an apocalyptic number.

It is an amenable number.

47308316921 is a deficient number, since it is larger than the sum of its proper divisors (466260679).

47308316921 is a wasteful number, since it uses less digits than its factorization.

47308316921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223503.

The product of its (nonzero) digits is 217728, while the sum is 44.

The spelling of 47308316921 in words is "forty-seven billion, three hundred eight million, three hundred sixteen thousand, nine hundred twenty-one".