20548547872 has 24 divisors (see below), whose sum is σ = 40516383600. Its totient is φ = 10258672704.

The previous prime is 20548547849. The next prime is 20548547881. The reversal of 20548547872 is 27874584502.

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, 466122 + ... + 508297.

It is an arithmetic number, because the mean of its divisors is an integer number (1688182650).

Almost surely, 2^20548547872 is an apocalyptic number.

It is an amenable number.

20548547872 is a deficient number, since it is larger than the sum of its proper divisors (19967835728).

20548547872 is an equidigital number, since it uses as much as digits as its factorization.

20548547872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 975088 (or 975080 counting only the distinct ones).

The product of its (nonzero) digits is 5017600, while the sum is 52.

The spelling of 20548547872 in words is "twenty billion, five hundred forty-eight million, five hundred forty-seven thousand, eight hundred seventy-two".