47064916821 has 8 divisors (see below), whose sum is σ = 67580393440. Its totient is φ = 28963025712.

The previous prime is 47064916817. The next prime is 47064916831. The reversal of 47064916821 is 12861946074.

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

It is not a de Polignac number, because 47064916821 - 2² = 47064916817 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47064916831) 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, 603396331 + ... + 603396408.

It is an arithmetic number, because the mean of its divisors is an integer number (8447549180).

Almost surely, 2^47064916821 is an apocalyptic number.

It is an amenable number.

47064916821 is a deficient number, since it is larger than the sum of its proper divisors (20515476619).

47064916821 is a wasteful number, since it uses less digits than its factorization.

47064916821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1206792755.

The product of its (nonzero) digits is 580608, while the sum is 48.

The spelling of 47064916821 in words is "forty-seven billion, sixty-four million, nine hundred sixteen thousand, eight hundred twenty-one".