1284928244648 has 32 divisors (see below), whose sum is σ = 2447473916160. Its totient is φ = 632306229120.

The previous prime is 1284928244629. The next prime is 1284928244651. The reversal of 1284928244648 is 8464428294821.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2082968 + ... + 2628423.

It is an arithmetic number, because the mean of its divisors is an integer number (76483559880).

Almost surely, 2^{1284928244648} is an apocalyptic number.

It is an amenable number.

1284928244648 is a deficient number, since it is larger than the sum of its proper divisors (1162545671512).

1284928244648 is a wasteful number, since it uses less digits than its factorization.

1284928244648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4711937 (or 4711933 counting only the distinct ones).

The product of its digits is 56623104, while the sum is 62.

The spelling of 1284928244648 in words is "one trillion, two hundred eighty-four billion, nine hundred twenty-eight million, two hundred forty-four thousand, six hundred forty-eight".