20986337038936 has 32 divisors (see below), whose sum is σ = 39958487412480. Its totient is φ = 10331146980000.

The previous prime is 20986337038921. The next prime is 20986337039039. The reversal of 20986337038936 is 63983073368902.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24998190 + ... + 25824061.

It is an arithmetic number, because the mean of its divisors is an integer number (1248702731640).

Almost surely, 2^{20986337038936} is an apocalyptic number.

It is an amenable number.

20986337038936 is a deficient number, since it is larger than the sum of its proper divisors (18972150373544).

20986337038936 is a wasteful number, since it uses less digits than its factorization.

20986337038936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50823055 (or 50823051 counting only the distinct ones).

The product of its (nonzero) digits is 211631616, while the sum is 67.

The spelling of 20986337038936 in words is "twenty trillion, nine hundred eighty-six billion, three hundred thirty-seven million, thirty-eight thousand, nine hundred thirty-six".