2812781034 has 48 divisors (see below), whose sum is σ = 6973162560. Its totient is φ = 802707840.

The previous prime is 2812780991. The next prime is 2812781047. The reversal of 2812781034 is 4301872182.

2812781034 is a `hidden beast` number, since 281 + 278 + 103 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 2812781034.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 98337 + ... + 123675.

It is an arithmetic number, because the mean of its divisors is an integer number (145274220).

Almost surely, 2^2812781034 is an apocalyptic number.

2812781034 is an abundant number, since it is smaller than the sum of its proper divisors (4160381526).

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

2812781034 is a wasteful number, since it uses less digits than its factorization.

2812781034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26235 (or 26232 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 2812781034 is about 53035.6581367668. The cubic root of 2812781034 is about 1411.6010574213.

The spelling of 2812781034 in words is "two billion, eight hundred twelve million, seven hundred eighty-one thousand, thirty-four".