2782842945 has 16 divisors (see below), whose sum is σ = 4467059520. Its totient is φ = 1479345984.

The previous prime is 2782842943. The next prime is 2782842949. The reversal of 2782842945 is 5492482872.

It is not a de Polignac number, because 2782842945 - 2¹ = 2782842943 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2782842943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 297550 + ... + 306759.

It is an arithmetic number, because the mean of its divisors is an integer number (279191220).

Almost surely, 2^2782842945 is an apocalyptic number.

It is an amenable number.

2782842945 is a deficient number, since it is larger than the sum of its proper divisors (1684216575).

2782842945 is a wasteful number, since it uses less digits than its factorization.

2782842945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604624.

The product of its digits is 2580480, while the sum is 51.

The square root of 2782842945 is about 52752.6581794700. The cubic root of 2782842945 is about 1406.5750155228.

The spelling of 2782842945 in words is "two billion, seven hundred eighty-two million, eight hundred forty-two thousand, nine hundred forty-five".