21600794308763 has 4 divisors (see below), whose sum is σ = 22871429268120. Its totient is φ = 20330159349408.

The previous prime is 21600794308747. The next prime is 21600794308813. The reversal of 21600794308763 is 36780349700612.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21600794308763 - 2⁴ = 21600794308747 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21600794308699 and 21600794308708.

It is not an unprimeable number, because it can be changed into a prime (21600794308963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 635317479653 + ... + 635317479686.

It is an arithmetic number, because the mean of its divisors is an integer number (5717857317030).

Almost surely, 2^{21600794308763} is an apocalyptic number.

21600794308763 is a deficient number, since it is larger than the sum of its proper divisors (1270634959357).

21600794308763 is a wasteful number, since it uses less digits than its factorization.

21600794308763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1270634959356.

The product of its (nonzero) digits is 9144576, while the sum is 56.

The spelling of 21600794308763 in words is "twenty-one trillion, six hundred billion, seven hundred ninety-four million, three hundred eight thousand, seven hundred sixty-three".