1284478728483 has 16 divisors (see below), whose sum is σ = 1769683286016. Its totient is φ = 827852867520.

The previous prime is 1284478728479. The next prime is 1284478728509. The reversal of 1284478728483 is 3848278744821.

It is not a de Polignac number, because 1284478728483 - 2² = 1284478728479 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1284478724483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6933810 + ... + 7116647.

It is an arithmetic number, because the mean of its divisors is an integer number (110605205376).

Almost surely, 2^{1284478728483} is an apocalyptic number.

1284478728483 is a deficient number, since it is larger than the sum of its proper divisors (485204557533).

1284478728483 is a wasteful number, since it uses less digits than its factorization.

1284478728483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14051474.

The product of its digits is 154140672, while the sum is 66.

The spelling of 1284478728483 in words is "one trillion, two hundred eighty-four billion, four hundred seventy-eight million, seven hundred twenty-eight thousand, four hundred eighty-three".