2812785052 has 72 divisors (see below), whose sum is σ = 6356488320. Its totient is φ = 1058003520.

The previous prime is 2812785049. The next prime is 2812785067. The reversal of 2812785052 is 2505872182.

It is a junction number, because it is equal to n+sod(n) for n = 2812784996 and 2812785014.

It is a congruent number.

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, 253599 + ... + 264457.

It is an arithmetic number, because the mean of its divisors is an integer number (88284560).

Almost surely, 2^2812785052 is an apocalyptic number.

2812785052 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2812785052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3178244160).

2812785052 is an abundant number, since it is smaller than the sum of its proper divisors (3543703268).

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

2812785052 is a wasteful number, since it uses less digits than its factorization.

2812785052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10939 (or 10908 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 40.

The square root of 2812785052 is about 53035.6960169281. The cubic root of 2812785052 is about 1411.6017295687.

The spelling of 2812785052 in words is "two billion, eight hundred twelve million, seven hundred eighty-five thousand, fifty-two".