2812563956 has 12 divisors (see below), whose sum is σ = 5091710820. Its totient is φ = 1357789440.

The previous prime is 2812563937. The next prime is 2812563959. The reversal of 2812563956 is 6593652182.

2812563956 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1287661456 + 1524902500 = 35884^2 + 39050^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2812563956.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2812563959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12123005 + ... + 12123236.

It is an arithmetic number, because the mean of its divisors is an integer number (424309235).

Almost surely, 2^2812563956 is an apocalyptic number.

It is an amenable number.

2812563956 is a deficient number, since it is larger than the sum of its proper divisors (2279146864).

2812563956 is a wasteful number, since it uses less digits than its factorization.

2812563956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24246274 (or 24246272 counting only the distinct ones).

The product of its digits is 777600, while the sum is 47.

The square root of 2812563956 is about 53033.6115685138. The cubic root of 2812563956 is about 1411.5647427783.

The spelling of 2812563956 in words is "two billion, eight hundred twelve million, five hundred sixty-three thousand, nine hundred fifty-six".