20803842708 has 24 divisors (see below), whose sum is σ = 52955236320. Its totient is φ = 6304194720.

The previous prime is 20803842659. The next prime is 20803842733. The reversal of 20803842708 is 80724830802.

It is a self number, because there is not a number n which added to its sum of digits gives 20803842708.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78802303 + ... + 78802566.

It is an arithmetic number, because the mean of its divisors is an integer number (2206468180).

Almost surely, 2^20803842708 is an apocalyptic number.

It is an amenable number.

20803842708 is an abundant number, since it is smaller than the sum of its proper divisors (32151393612).

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

20803842708 is a wasteful number, since it uses less digits than its factorization.

20803842708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157604887 (or 157604885 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 42.

The spelling of 20803842708 in words is "twenty billion, eight hundred three million, eight hundred forty-two thousand, seven hundred eight".