21368806700873 has 8 divisors (see below), whose sum is σ = 21884328052416. Its totient is φ = 20859245134000.

The previous prime is 21368806700827. The next prime is 21368806700897. The reversal of 21368806700873 is 37800760886312.

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 21368806700873 - 2¹² = 21368806696777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21368806700173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1489938911 + ... + 1489953252.

It is an arithmetic number, because the mean of its divisors is an integer number (2735541006552).

Almost surely, 2^{21368806700873} is an apocalyptic number.

It is an amenable number.

21368806700873 is a deficient number, since it is larger than the sum of its proper divisors (515521351543).

21368806700873 is a wasteful number, since it uses less digits than its factorization.

21368806700873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2979892335.

The product of its (nonzero) digits is 16257024, while the sum is 59.

The spelling of 21368806700873 in words is "twenty-one trillion, three hundred sixty-eight billion, eight hundred six million, seven hundred thousand, eight hundred seventy-three".