2108984389653 has 4 divisors (see below), whose sum is σ = 2811979186208. Its totient is φ = 1405989593100.

The previous prime is 2108984389643. The next prime is 2108984389667. The reversal of 2108984389653 is 3569834898012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2108984389653 - 2⁵ = 2108984389621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2108984389643) by changing a digit.

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, 351497398273 + ... + 351497398278.

It is an arithmetic number, because the mean of its divisors is an integer number (702994796552).

Almost surely, 2^{2108984389653} is an apocalyptic number.

It is an amenable number.

2108984389653 is a deficient number, since it is larger than the sum of its proper divisors (702994796555).

2108984389653 is an equidigital number, since it uses as much as digits as its factorization.

2108984389653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702994796554.

The product of its (nonzero) digits is 89579520, while the sum is 66.

The spelling of 2108984389653 in words is "two trillion, one hundred eight billion, nine hundred eighty-four million, three hundred eighty-nine thousand, six hundred fifty-three".