2045312882 has 18 divisors (see below), whose sum is σ = 3106336077. Its totient is φ = 1010024736.

The previous prime is 2045312879. The next prime is 2045312897. The reversal of 2045312882 is 2882135402.

It can be written as a sum of positive squares in 2 ways, for example, as 1291755481 + 753557401 = 35941^2 + 27451^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=31979.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 7227113 + ... + 7227395.

Almost surely, 2^2045312882 is an apocalyptic number.

2045312882 is a deficient number, since it is larger than the sum of its proper divisors (1061023195).

2045312882 is an frugal number, since it uses more digits than its factorization.

2045312882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794 (or 398 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 2045312882 is about 45225.1355111292. The cubic root of 2045312882 is about 1269.3651904209.

The spelling of 2045312882 in words is "two billion, forty-five million, three hundred twelve thousand, eight hundred eighty-two".