20638063048 has 16 divisors (see below), whose sum is σ = 39426489180. Its totient is φ = 10124332608.

The previous prime is 20638062989. The next prime is 20638063049. The reversal of 20638063048 is 84036083602.

It can be written as a sum of positive squares in 2 ways, for example, as 20017156324 + 620906724 = 141482^2 + 24918^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20638063048.

It is not an unprimeable number, because it can be changed into a prime (20638063049) by changing a digit.

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, 24336915 + ... + 24337762.

Almost surely, 2^20638063048 is an apocalyptic number.

It is an amenable number.

20638063048 is a deficient number, since it is larger than the sum of its proper divisors (18788426132).

20638063048 is a wasteful number, since it uses less digits than its factorization.

20638063048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48674736 (or 48674732 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 40.

The spelling of 20638063048 in words is "twenty billion, six hundred thirty-eight million, sixty-three thousand, forty-eight".