2801863000 has 32 divisors (see below), whose sum is σ = 6556361760. Its totient is φ = 1120744800.

The previous prime is 2801862991. The next prime is 2801863021. The reversal of 2801863000 is 3681082.

It is a self number, because there is not a number n which added to its sum of digits gives 2801863000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1399932 + ... + 1401931.

It is an arithmetic number, because the mean of its divisors is an integer number (204886305).

Almost surely, 2^2801863000 is an apocalyptic number.

2801863000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2801863000 is an abundant number, since it is smaller than the sum of its proper divisors (3754498760).

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

2801863000 is a wasteful number, since it uses less digits than its factorization.

2801863000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2801884 (or 2801870 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 2801863000 is about 52932.6269894098. The cubic root of 2801863000 is about 1409.7722751454.

The spelling of 2801863000 in words is "two billion, eight hundred one million, eight hundred sixty-three thousand".