2649337445 has 4 divisors (see below), whose sum is σ = 3179204940. Its totient is φ = 2119469952.

The previous prime is 2649337433. The next prime is 2649337489. The reversal of 2649337445 is 5447339462.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 916030756 + 1733306689 = 30266^2 + 41633^2 .

It is a cyclic number.

It is not a de Polignac number, because 2649337445 - 2²⁰ = 2648288869 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2649337445.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 264933740 + ... + 264933749.

It is an arithmetic number, because the mean of its divisors is an integer number (794801235).

Almost surely, 2^2649337445 is an apocalyptic number.

It is an amenable number.

2649337445 is a deficient number, since it is larger than the sum of its proper divisors (529867495).

2649337445 is an equidigital number, since it uses as much as digits as its factorization.

2649337445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529867494.

The product of its digits is 2177280, while the sum is 47.

The square root of 2649337445 is about 51471.7149995995. The cubic root of 2649337445 is about 1383.7121654993.

The spelling of 2649337445 in words is "two billion, six hundred forty-nine million, three hundred thirty-seven thousand, four hundred forty-five".