2783338945 has 8 divisors (see below), whose sum is σ = 3455179560. Its totient is φ = 2149889280.

The previous prime is 2783338939. The next prime is 2783338969. The reversal of 2783338945 is 5498333872.

It can be written as a sum of positive squares in 4 ways, for example, as 83393424 + 2699945521 = 9132^2 + 51961^2 .

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

It is not a de Polignac number, because 2783338945 - 2¹⁵ = 2783306177 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2783338892 and 2783338901.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9597576 + ... + 9597865.

It is an arithmetic number, because the mean of its divisors is an integer number (431897445).

Almost surely, 2^2783338945 is an apocalyptic number.

It is an amenable number.

2783338945 is a deficient number, since it is larger than the sum of its proper divisors (671840615).

2783338945 is a wasteful number, since it uses less digits than its factorization.

2783338945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19195475.

The product of its digits is 4354560, while the sum is 52.

The square root of 2783338945 is about 52757.3591549084. The cubic root of 2783338945 is about 1406.6585775224.

The spelling of 2783338945 in words is "two billion, seven hundred eighty-three million, three hundred thirty-eight thousand, nine hundred forty-five".