20650673828 has 12 divisors (see below), whose sum is σ = 36207781680. Its totient is φ = 10305593352.

The previous prime is 20650673821. The next prime is 20650673863. The reversal of 20650673828 is 82837605602.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20650673821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4933538 + ... + 4937721.

It is an arithmetic number, because the mean of its divisors is an integer number (3017315140).

Almost surely, 2^20650673828 is an apocalyptic number.

It is an amenable number.

20650673828 is a deficient number, since it is larger than the sum of its proper divisors (15557107852).

20650673828 is a wasteful number, since it uses less digits than its factorization.

20650673828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9871786 (or 9871784 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 47.

The spelling of 20650673828 in words is "twenty billion, six hundred fifty million, six hundred seventy-three thousand, eight hundred twenty-eight".