21027588026853 has 8 divisors (see below), whose sum is σ = 28148484371616. Its totient is φ = 13962541850000.

The previous prime is 21027588026843. The next prime is 21027588026881. The reversal of 21027588026853 is 35862088572012.

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 21027588026853 - 2⁵ = 21027588026821 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 21027588026793 and 21027588026802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21027588026803) 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, 13962541098 + ... + 13962542603.

It is an arithmetic number, because the mean of its divisors is an integer number (3518560546452).

Almost surely, 2^{21027588026853} is an apocalyptic number.

It is an amenable number.

21027588026853 is a deficient number, since it is larger than the sum of its proper divisors (7120896344763).

21027588026853 is a wasteful number, since it uses less digits than its factorization.

21027588026853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27925083955.

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

The spelling of 21027588026853 in words is "twenty-one trillion, twenty-seven billion, five hundred eighty-eight million, twenty-six thousand, eight hundred fifty-three".