2782043045 has 8 divisors (see below), whose sum is σ = 3338923896. Its totient is φ = 2225319616.

The previous prime is 2782043041. The next prime is 2782043071. The reversal of 2782043045 is 5403402872.

It can be written as a sum of positive squares in 4 ways, for example, as 127938721 + 2654104324 = 11311^2 + 51518^2 .

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 2782043045 - 2² = 2782043041 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2782042996 and 2782043014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2782043041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3839 + ... + 74691.

It is an arithmetic number, because the mean of its divisors is an integer number (417365487).

Almost surely, 2^2782043045 is an apocalyptic number.

It is an amenable number.

2782043045 is a deficient number, since it is larger than the sum of its proper divisors (556880851).

2782043045 is an equidigital number, since it uses as much as digits as its factorization.

2782043045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78711.

The product of its (nonzero) digits is 53760, while the sum is 35.

The square root of 2782043045 is about 52745.0760261088. The cubic root of 2782043045 is about 1406.4402340307.

The spelling of 2782043045 in words is "two billion, seven hundred eighty-two million, forty-three thousand, forty-five".