21022982458539 has 64 divisors (see below), whose sum is σ = 29401292390400. Its totient is φ = 13346119987200.

The previous prime is 21022982458537. The next prime is 21022982458549. The reversal of 21022982458539 is 93585428922012.

It is not a de Polignac number, because 21022982458539 - 2¹ = 21022982458537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21022982458537) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4733837559 + ... + 4733841999.

It is an arithmetic number, because the mean of its divisors is an integer number (459395193600).

Almost surely, 2^{21022982458539} is an apocalyptic number.

21022982458539 is a deficient number, since it is larger than the sum of its proper divisors (8378309931861).

21022982458539 is a wasteful number, since it uses less digits than its factorization.

21022982458539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7196.

The product of its (nonzero) digits is 24883200, while the sum is 60.

The spelling of 21022982458539 in words is "twenty-one trillion, twenty-two billion, nine hundred eighty-two million, four hundred fifty-eight thousand, five hundred thirty-nine".