2812193956 has 24 divisors (see below), whose sum is σ = 5781714624. Its totient is φ = 1179941280.

The previous prime is 2812193947. The next prime is 2812193957. The reversal of 2812193956 is 6593912182.

It is not an unprimeable number, because it can be changed into a prime (2812193957) 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, 2457640 + ... + 2458783.

It is an arithmetic number, because the mean of its divisors is an integer number (240904776).

Almost surely, 2^2812193956 is an apocalyptic number.

2812193956 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2812193956 is an abundant number, since it is smaller than the sum of its proper divisors (2969520668).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2812193956 is a wasteful number, since it uses less digits than its factorization.

2812193956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4916451 (or 4916449 counting only the distinct ones).

The product of its digits is 233280, while the sum is 46.

The square root of 2812193956 is about 53030.1230999891. The cubic root of 2812193956 is about 1411.5028417434.

The spelling of 2812193956 in words is "two billion, eight hundred twelve million, one hundred ninety-three thousand, nine hundred fifty-six".