20986250047768 has 16 divisors (see below), whose sum is σ = 40016154753000. Its totient is φ = 10315275446976.

The previous prime is 20986250047757. The next prime is 20986250047771. The reversal of 20986250047768 is 86774005268902.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 22231196613 + ... + 22231197556.

Almost surely, 2^{20986250047768} is an apocalyptic number.

It is an amenable number.

20986250047768 is a deficient number, since it is larger than the sum of its proper divisors (19029904705232).

20986250047768 is a wasteful number, since it uses less digits than its factorization.

20986250047768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44462394234 (or 44462394230 counting only the distinct ones).

The product of its (nonzero) digits is 81285120, while the sum is 64.

The spelling of 20986250047768 in words is "twenty trillion, nine hundred eighty-six billion, two hundred fifty million, forty-seven thousand, seven hundred sixty-eight".