2481681536512 has 40 divisors (see below), whose sum is σ = 5014229794200. Its totient is φ = 1226898714624.

The previous prime is 2481681536381. The next prime is 2481681536531. The reversal of 2481681536512 is 2156351861842.

It is a super-2 number, since 2×2481681536512² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2481681536512.

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 3 ways as a sum of consecutive naturals, for example, 27184962 + ... + 27276097.

It is an arithmetic number, because the mean of its divisors is an integer number (125355744855).

Almost surely, 2^{2481681536512} is an apocalyptic number.

It is an amenable number.

2481681536512 is an abundant number, since it is smaller than the sum of its proper divisors (2532548257688).

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

2481681536512 is an frugal number, since it uses more digits than its factorization.

2481681536512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54461166 (or 54461150 counting only the distinct ones).

The product of its digits is 2764800, while the sum is 52.

The spelling of 2481681536512 in words is "two trillion, four hundred eighty-one billion, six hundred eighty-one million, five hundred thirty-six thousand, five hundred twelve".