20889044208 has 40 divisors (see below), whose sum is σ = 59959294800. Its totient is φ = 6963014592.

The previous prime is 20889044179. The next prime is 20889044213. The reversal of 20889044208 is 80244098802.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24176703 + ... + 24177566.

It is an arithmetic number, because the mean of its divisors is an integer number (1498982370).

Almost surely, 2^20889044208 is an apocalyptic number.

It is an amenable number.

20889044208 is an abundant number, since it is smaller than the sum of its proper divisors (39070250592).

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

20889044208 is a wasteful number, since it uses less digits than its factorization.

20889044208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48354286 (or 48354274 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 45.

The spelling of 20889044208 in words is "twenty billion, eight hundred eighty-nine million, forty-four thousand, two hundred eight".