2788145790 has 64 divisors (see below), whose sum is σ = 7002878976. Its totient is φ = 709102592.

The previous prime is 2788145777. The next prime is 2788145791. The reversal of 2788145790 is 975418872.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2788145791) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 237847 + ... + 249293.

It is an arithmetic number, because the mean of its divisors is an integer number (109419984).

Almost surely, 2^2788145790 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2788145790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3501439488).

2788145790 is an abundant number, since it is smaller than the sum of its proper divisors (4214733186).

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

2788145790 is a wasteful number, since it uses less digits than its factorization.

2788145790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11833.

The product of its (nonzero) digits is 1128960, while the sum is 51.

The square root of 2788145790 is about 52802.8956592344. The cubic root of 2788145790 is about 1407.4678814049.

The spelling of 2788145790 in words is "two billion, seven hundred eighty-eight million, one hundred forty-five thousand, seven hundred ninety".