2811252860 has 24 divisors (see below), whose sum is σ = 6357757056. Its totient is φ = 1038000960.

The previous prime is 2811252853. The next prime is 2811252869. The reversal of 2811252860 is 682521182.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2811252860.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2811252869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5405996 + ... + 5406515.

It is an arithmetic number, because the mean of its divisors is an integer number (264906544).

Almost surely, 2^2811252860 is an apocalyptic number.

2811252860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2811252860 is an abundant number, since it is smaller than the sum of its proper divisors (3546504196).

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

2811252860 is a wasteful number, since it uses less digits than its factorization.

2811252860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10812533 (or 10812531 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 35.

The square root of 2811252860 is about 53021.2491365490. The cubic root of 2811252860 is about 1411.3453718220.

The spelling of 2811252860 in words is "two billion, eight hundred eleven million, two hundred fifty-two thousand, eight hundred sixty".