2788328166 has 32 divisors (see below), whose sum is σ = 6321719040. Its totient is φ = 812791584.

The previous prime is 2788328161. The next prime is 2788328167. The reversal of 2788328166 is 6618238872.

It is a happy number.

It is a super-2 number, since 2×2788328166² = 15549547922617847112, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2788328161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 939250 + ... + 942213.

It is an arithmetic number, because the mean of its divisors is an integer number (197553720).

Almost surely, 2^2788328166 is an apocalyptic number.

2788328166 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2788328166 is an abundant number, since it is smaller than the sum of its proper divisors (3533390874).

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

2788328166 is a wasteful number, since it uses less digits than its factorization.

2788328166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1881500.

The product of its digits is 1548288, while the sum is 51.

The square root of 2788328166 is about 52804.6225817399. The cubic root of 2788328166 is about 1407.4985687965.

The spelling of 2788328166 in words is "two billion, seven hundred eighty-eight million, three hundred twenty-eight thousand, one hundred sixty-six".