21093689135093 has 16 divisors (see below), whose sum is σ = 22051525708800. Its totient is φ = 20154830505600.

The previous prime is 21093689135069. The next prime is 21093689135111. The reversal of 21093689135093 is 39053198639012.

It is a cyclic number.

It is not a de Polignac number, because 21093689135093 - 2²⁶ = 21093622026229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21093689135053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12901448 + ... + 14444193.

It is an arithmetic number, because the mean of its divisors is an integer number (1378220356800).

Almost surely, 2^{21093689135093} is an apocalyptic number.

It is an amenable number.

21093689135093 is a deficient number, since it is larger than the sum of its proper divisors (957836573707).

21093689135093 is a wasteful number, since it uses less digits than its factorization.

21093689135093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27345988.

The product of its (nonzero) digits is 9447840, while the sum is 59.

The spelling of 21093689135093 in words is "twenty-one trillion, ninety-three billion, six hundred eighty-nine million, one hundred thirty-five thousand, ninety-three".