20637789596 has 12 divisors (see below), whose sum is σ = 36728270040. Its totient is φ = 10143998160.

The previous prime is 20637789533. The next prime is 20637789611. The reversal of 20637789596 is 69598773602.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43723895 + ... + 43724366.

It is an arithmetic number, because the mean of its divisors is an integer number (3060689170).

Almost surely, 2^20637789596 is an apocalyptic number.

It is an amenable number.

20637789596 is a deficient number, since it is larger than the sum of its proper divisors (16090480444).

20637789596 is a wasteful number, since it uses less digits than its factorization.

20637789596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87448324 (or 87448322 counting only the distinct ones).

The product of its (nonzero) digits is 34292160, while the sum is 62.

The spelling of 20637789596 in words is "twenty billion, six hundred thirty-seven million, seven hundred eighty-nine thousand, five hundred ninety-six".