2812109247 has 12 divisors (see below), whose sum is σ = 4300873200. Its totient is φ = 1764460608.

The previous prime is 2812109239. The next prime is 2812109257. The reversal of 2812109247 is 7429012182.

It is not a de Polignac number, because 2812109247 - 2³ = 2812109239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2812109257) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9189747 + ... + 9190052.

It is an arithmetic number, because the mean of its divisors is an integer number (358406100).

Almost surely, 2^2812109247 is an apocalyptic number.

2812109247 is a deficient number, since it is larger than the sum of its proper divisors (1488763953).

2812109247 is a wasteful number, since it uses less digits than its factorization.

2812109247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18379822 (or 18379819 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 2812109247 is about 53029.3244064074. The cubic root of 2812109247 is about 1411.4886691559.

The spelling of 2812109247 in words is "two billion, eight hundred twelve million, one hundred nine thousand, two hundred forty-seven".