2045854447 has 32 divisors (see below), whose sum is σ = 2566226432. Its totient is φ = 1587890304.

The previous prime is 2045854429. The next prime is 2045854453. The reversal of 2045854447 is 7444585402.

It is not a de Polignac number, because 2045854447 - 2²⁷ = 1911636719 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2045854457) 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 31 ways as a sum of consecutive naturals, for example, 1871233 + ... + 1872325.

It is an arithmetic number, because the mean of its divisors is an integer number (80194576).

Almost surely, 2^2045854447 is an apocalyptic number.

2045854447 is a deficient number, since it is larger than the sum of its proper divisors (520371985).

2045854447 is a wasteful number, since it uses less digits than its factorization.

2045854447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1487.

The product of its (nonzero) digits is 716800, while the sum is 43.

The square root of 2045854447 is about 45231.1225485285. The cubic root of 2045854447 is about 1269.4772161652.

The spelling of 2045854447 in words is "two billion, forty-five million, eight hundred fifty-four thousand, four hundred forty-seven".