21485056841067 has 8 divisors (see below), whose sum is σ = 28646764651840. Its totient is φ = 14323360128840.

The previous prime is 21485056841011. The next prime is 21485056841069. The reversal of 21485056841067 is 76014865058412.

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

It is not a de Polignac number, because 21485056841067 - 2³¹ = 21482909357419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21485056840998 and 21485056841016.

It is not an unprimeable number, because it can be changed into a prime (21485056841069) 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, 4371984 + ... + 7879362.

It is an arithmetic number, because the mean of its divisors is an integer number (3580845581480).

Almost surely, 2^{21485056841067} is an apocalyptic number.

21485056841067 is a deficient number, since it is larger than the sum of its proper divisors (7161707810773).

21485056841067 is a wasteful number, since it uses less digits than its factorization.

21485056841067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5549273.

The product of its (nonzero) digits is 12902400, while the sum is 57.

The spelling of 21485056841067 in words is "twenty-one trillion, four hundred eighty-five billion, fifty-six million, eight hundred forty-one thousand, sixty-seven".