2141542009428 has 12 divisors (see below), whose sum is σ = 4996931355360. Its totient is φ = 713847336472.

The previous prime is 2141542009367. The next prime is 2141542009433. The reversal of 2141542009428 is 8249002451412.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 2141542009428.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 89230917048 + ... + 89230917071.

It is an arithmetic number, because the mean of its divisors is an integer number (416410946280).

Almost surely, 2^{2141542009428} is an apocalyptic number.

It is an amenable number.

2141542009428 is an abundant number, since it is smaller than the sum of its proper divisors (2855389345932).

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

2141542009428 is a wasteful number, since it uses less digits than its factorization.

2141542009428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178461834126 (or 178461834124 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 42.

The spelling of 2141542009428 in words is "two trillion, one hundred forty-one billion, five hundred forty-two million, nine thousand, four hundred twenty-eight".