42844810349 has 4 divisors (see below), whose sum is σ = 46739793120. Its totient is φ = 38949827580.

The previous prime is 42844810331. The next prime is 42844810357. The reversal of 42844810349 is 94301844824.

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 42844810349 - 2⁸ = 42844810093 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42844810249) 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, 1947491369 + ... + 1947491390.

It is an arithmetic number, because the mean of its divisors is an integer number (11684948280).

Almost surely, 2^42844810349 is an apocalyptic number.

It is an amenable number.

42844810349 is a deficient number, since it is larger than the sum of its proper divisors (3894982771).

42844810349 is a wasteful number, since it uses less digits than its factorization.

42844810349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3894982770.

The product of its (nonzero) digits is 884736, while the sum is 47.

The spelling of 42844810349 in words is "forty-two billion, eight hundred forty-four million, eight hundred ten thousand, three hundred forty-nine".