2788145828 has 48 divisors (see below), whose sum is σ = 5457091584. Its totient is φ = 1237749120.

The previous prime is 2788145827. The next prime is 2788145873. The reversal of 2788145828 is 8285418872.

It is a self number, because there is not a number n which added to its sum of digits gives 2788145828.

It is not an unprimeable number, because it can be changed into a prime (2788145827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 264026 + ... + 274382.

It is an arithmetic number, because the mean of its divisors is an integer number (113689408).

Almost surely, 2^2788145828 is an apocalyptic number.

It is an amenable number.

2788145828 is a deficient number, since it is larger than the sum of its proper divisors (2668945756).

2788145828 is a wasteful number, since it uses less digits than its factorization.

2788145828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10572 (or 10570 counting only the distinct ones).

The product of its digits is 2293760, while the sum is 53.

The square root of 2788145828 is about 52802.8960190632. The cubic root of 2788145828 is about 1407.4678877990.

The spelling of 2788145828 in words is "two billion, seven hundred eighty-eight million, one hundred forty-five thousand, eight hundred twenty-eight".