2105471873449 has 8 divisors (see below), whose sum is σ = 2406264606720. Its totient is φ = 1804681899456.

The previous prime is 2105471873437. The next prime is 2105471873467. The reversal of 2105471873449 is 9443781745012.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2105471873449 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2105471873449.

It is not an unprimeable number, because it can be changed into a prime (2105471873419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1345752 + ... + 2453974.

It is an arithmetic number, because the mean of its divisors is an integer number (300783075840).

Almost surely, 2^{2105471873449} is an apocalyptic number.

It is an amenable number.

2105471873449 is a deficient number, since it is larger than the sum of its proper divisors (300792733271).

2105471873449 is a wasteful number, since it uses less digits than its factorization.

2105471873449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379639.

The product of its (nonzero) digits is 6773760, while the sum is 55.

The spelling of 2105471873449 in words is "two trillion, one hundred five billion, four hundred seventy-one million, eight hundred seventy-three thousand, four hundred forty-nine".