21968800838973 has 12 divisors (see below), whose sum is σ = 31732776455328. Its totient is φ = 14645837626440.

The previous prime is 21968800838939. The next prime is 21968800838977. The reversal of 21968800838973 is 37983800886912.

It is not a de Polignac number, because 21968800838973 - 2⁶ = 21968800838909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21968800838977) 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, 2833336 + ... + 7208702.

It is an arithmetic number, because the mean of its divisors is an integer number (2644398037944).

Almost surely, 2^{21968800838973} is an apocalyptic number.

It is an amenable number.

21968800838973 is a deficient number, since it is larger than the sum of its proper divisors (9763975616355).

21968800838973 is a wasteful number, since it uses less digits than its factorization.

21968800838973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4933264 (or 4933261 counting only the distinct ones).

The product of its (nonzero) digits is 250822656, while the sum is 72.

The spelling of 21968800838973 in words is "twenty-one trillion, nine hundred sixty-eight billion, eight hundred million, eight hundred thirty-eight thousand, nine hundred seventy-three".