20108841928 has 16 divisors (see below), whose sum is σ = 43090375680. Its totient is φ = 8618075088.

The previous prime is 20108841913. The next prime is 20108841931. The reversal of 20108841928 is 82914880102.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179543176 + ... + 179543287.

It is an arithmetic number, because the mean of its divisors is an integer number (2693148480).

Almost surely, 2^20108841928 is an apocalyptic number.

20108841928 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20108841928 is an abundant number, since it is smaller than the sum of its proper divisors (22981533752).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20108841928 is a wasteful number, since it uses less digits than its factorization.

20108841928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359086476 (or 359086472 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 43.

The spelling of 20108841928 in words is "twenty billion, one hundred eight million, eight hundred forty-one thousand, nine hundred twenty-eight".