428473214445548 has 12 divisors (see below), whose sum is σ = 749846351379552. Its totient is φ = 214231399765680.

The previous prime is 428473214445533. The next prime is 428473214445587. The reversal of 428473214445548 is 845544412374824.

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, 1301679140 + ... + 1302008267.

It is an arithmetic number, because the mean of its divisors is an integer number (62487195948296).

Almost surely, 2^{428473214445548} is an apocalyptic number.

It is an amenable number.

428473214445548 is a deficient number, since it is larger than the sum of its proper divisors (321373136934004).

428473214445548 is a wasteful number, since it uses less digits than its factorization.

428473214445548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2603728552 (or 2603728550 counting only the distinct ones).

The product of its digits is 550502400, while the sum is 65.

The spelling of 428473214445548 in words is "four hundred twenty-eight trillion, four hundred seventy-three billion, two hundred fourteen million, four hundred forty-five thousand, five hundred forty-eight".