2104210103549 has 4 divisors (see below), whose sum is σ = 2130845674560. Its totient is φ = 2077574532540.

The previous prime is 2104210103533. The next prime is 2104210103563. The reversal of 2104210103549 is 9453010124012.

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 a cyclic number.

It is not a de Polignac number, because 2104210103549 - 2⁴ = 2104210103533 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 (2104210103579) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13317785387 + ... + 13317785544.

It is an arithmetic number, because the mean of its divisors is an integer number (532711418640).

Almost surely, 2^{2104210103549} is an apocalyptic number.

It is an amenable number.

2104210103549 is a deficient number, since it is larger than the sum of its proper divisors (26635571011).

2104210103549 is an equidigital number, since it uses as much as digits as its factorization.

2104210103549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26635571010.

The product of its (nonzero) digits is 8640, while the sum is 32.

The spelling of 2104210103549 in words is "two trillion, one hundred four billion, two hundred ten million, one hundred three thousand, five hundred forty-nine".