1284873276852 has 216 divisors, whose sum is σ = 3792373384800. Its totient is φ = 365476510080.

The previous prime is 1284873276811. The next prime is 1284873276877. The reversal of 1284873276852 is 2586723784821.

1284873276852 is a `hidden beast` number, since 1 + 2 + 8 + 487 + 3 + 2 + 76 + 85 + 2 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1284873276852.

It is a congruent 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 71 ways as a sum of consecutive naturals, for example, 8950063 + ... + 9092489.

Almost surely, 2^{1284873276852} is an apocalyptic number.

1284873276852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1284873276852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1896186692400).

1284873276852 is an abundant number, since it is smaller than the sum of its proper divisors (2507500107948).

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

1284873276852 is a wasteful number, since it uses less digits than its factorization.

1284873276852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142587 (or 142571 counting only the distinct ones).

The product of its digits is 72253440, while the sum is 63.

The spelling of 1284873276852 in words is "one trillion, two hundred eighty-four billion, eight hundred seventy-three million, two hundred seventy-six thousand, eight hundred fifty-two".