2121459528384 has 126 divisors (see below), whose sum is σ = 7073561312844. Its totient is φ = 606131285760.

The previous prime is 2121459528379. The next prime is 2121459528431. The reversal of 2121459528384 is 4838259541212.

2121459528384 is a `hidden beast` number, since 2 + 1 + 2 + 14 + 595 + 2 + 8 + 38 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (126).

It is a self number, because there is not a number n which added to its sum of digits gives 2121459528384.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 37554322 + ... + 37610769.

Almost surely, 2^{2121459528384} is an apocalyptic number.

2121459528384 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2121459528384 is an abundant number, since it is smaller than the sum of its proper divisors (4952101784460).

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

2121459528384 is a wasteful number, since it uses less digits than its factorization.

2121459528384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75165123 (or 75165103 counting only the distinct ones).

The product of its digits is 5529600, while the sum is 54.

The spelling of 2121459528384 in words is "two trillion, one hundred twenty-one billion, four hundred fifty-nine million, five hundred twenty-eight thousand, three hundred eighty-four".