2783788819 has 16 divisors (see below), whose sum is σ = 3375308800. Its totient is φ = 2242707264.

The previous prime is 2783788769. The next prime is 2783788841. The reversal of 2783788819 is 9188873872.

It is not a de Polignac number, because 2783788819 - 2⁷ = 2783788691 is a prime.

It is a super-2 number, since 2×2783788819² = 15498960377578829522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2783780819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65514 + ... + 99295.

It is an arithmetic number, because the mean of its divisors is an integer number (210956800).

Almost surely, 2^2783788819 is an apocalyptic number.

2783788819 is a deficient number, since it is larger than the sum of its proper divisors (591519981).

2783788819 is a wasteful number, since it uses less digits than its factorization.

2783788819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164962.

The product of its digits is 10838016, while the sum is 61.

The square root of 2783788819 is about 52761.6225963531. The cubic root of 2783788819 is about 1406.7343600079.

The spelling of 2783788819 in words is "two billion, seven hundred eighty-three million, seven hundred eighty-eight thousand, eight hundred nineteen".