21084695569273 has 12 divisors (see below), whose sum is σ = 24531233380992. Its totient is φ = 18069546755400.

The previous prime is 21084695569237. The next prime is 21084695569319. The reversal of 21084695569273 is 37296559648012.

It is not a de Polignac number, because 21084695569273 - 2¹³ = 21084695561081 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21084695569199 and 21084695569208.

It is not an unprimeable number, because it can be changed into a prime (21084695561273) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36009553 + ... + 36590398.

It is an arithmetic number, because the mean of its divisors is an integer number (2044269448416).

It is a 1-persistent number, because it is pandigital, but 2⋅21084695569273 = 42169391138546 is not.

Almost surely, 2^{21084695569273} is an apocalyptic number.

It is an amenable number.

21084695569273 is a deficient number, since it is larger than the sum of its proper divisors (3446537811719).

21084695569273 is an equidigital number, since it uses as much as digits as its factorization.

21084695569273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72605892 (or 72605885 counting only the distinct ones).

The product of its (nonzero) digits is 195955200, while the sum is 67.

The spelling of 21084695569273 in words is "twenty-one trillion, eighty-four billion, six hundred ninety-five million, five hundred sixty-nine thousand, two hundred seventy-three".