20863204448 has 48 divisors (see below), whose sum is σ = 43252211520. Its totient is φ = 9878921856.

The previous prime is 20863204387. The next prime is 20863204477. The reversal of 20863204448 is 84440236802.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2380811 + ... + 2389557.

It is an arithmetic number, because the mean of its divisors is an integer number (901087740).

Almost surely, 2^20863204448 is an apocalyptic number.

It is an amenable number.

20863204448 is an abundant number, since it is smaller than the sum of its proper divisors (22389007072).

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

20863204448 is a wasteful number, since it uses less digits than its factorization.

20863204448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12699 (or 12691 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 41.

The spelling of 20863204448 in words is "twenty billion, eight hundred sixty-three million, two hundred four thousand, four hundred forty-eight".