1281827424312 has 96 divisors (see below), whose sum is σ = 3739412551680. Its totient is φ = 395514757440.

The previous prime is 1281827424299. The next prime is 1281827424331. The reversal of 1281827424312 is 2134247281821.

1281827424312 is a `hidden beast` number, since 12 + 8 + 182 + 7 + 424 + 31 + 2 = 666.

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 23 ways as a sum of consecutive naturals, for example, 12433348 + ... + 12536019.

It is an arithmetic number, because the mean of its divisors is an integer number (38952214080).

Almost surely, 2^{1281827424312} is an apocalyptic number.

1281827424312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1281827424312 is an abundant number, since it is smaller than the sum of its proper divisors (2457585127368).

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

1281827424312 is a wasteful number, since it uses less digits than its factorization.

1281827424312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24969433 (or 24969426 counting only the distinct ones).

The product of its digits is 344064, while the sum is 45.

The spelling of 1281827424312 in words is "one trillion, two hundred eighty-one billion, eight hundred twenty-seven million, four hundred twenty-four thousand, three hundred twelve".