2049281279 has 8 divisors (see below), whose sum is σ = 2097298320. Its totient is φ = 2001707136.

The previous prime is 2049281243. The next prime is 2049281281. The reversal of 2049281279 is 9721829402.

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

It is a cyclic number.

It is not a de Polignac number, because 2049281279 - 2¹² = 2049277183 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 (2049281219) 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 7 ways as a sum of consecutive naturals, for example, 101354 + ... + 119879.

It is an arithmetic number, because the mean of its divisors is an integer number (262162290).

Almost surely, 2^2049281279 is an apocalyptic number.

2049281279 is a deficient number, since it is larger than the sum of its proper divisors (48017041).

2049281279 is a wasteful number, since it uses less digits than its factorization.

2049281279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221449.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 2049281279 is about 45268.9880492153. The cubic root of 2049281279 is about 1270.1856175676.

The spelling of 2049281279 in words is "two billion, forty-nine million, two hundred eighty-one thousand, two hundred seventy-nine".