20880828004 has 9 divisors (see below), whose sum is σ = 36541954771. Its totient is φ = 10440269500.

The previous prime is 20880827977. The next prime is 20880828013. The reversal of 20880828004 is 40082808802.

It is a happy number.

The square root of 20880828004 is 144502.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 252879 + ... + 325129.

Almost surely, 2^20880828004 is an apocalyptic number.

20880828004 is the 144502-nd square number.

It is an amenable number.

20880828004 is a deficient number, since it is larger than the sum of its proper divisors (15661126767).

20880828004 is an frugal number, since it uses more digits than its factorization.

20880828004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144506 (or 72253 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 40.

The spelling of 20880828004 in words is "twenty billion, eight hundred eighty million, eight hundred twenty-eight thousand, four".