21882546047 has 8 divisors (see below), whose sum is σ = 23172079536. Its totient is φ = 20593270912.

The previous prime is 21882546029. The next prime is 21882546067. The reversal of 21882546047 is 74064528812.

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 21882546047 - 2¹⁸ = 21882283903 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21882545992 and 21882546010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21882546067) 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, 125873 + ... + 244149.

It is an arithmetic number, because the mean of its divisors is an integer number (2896509942).

Almost surely, 2^21882546047 is an apocalyptic number.

21882546047 is a deficient number, since it is larger than the sum of its proper divisors (1289533489).

21882546047 is a wasteful number, since it uses less digits than its factorization.

21882546047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129177.

The product of its (nonzero) digits is 860160, while the sum is 47.

The spelling of 21882546047 in words is "twenty-one billion, eight hundred eighty-two million, five hundred forty-six thousand, forty-seven".