2777783066 has 16 divisors (see below), whose sum is σ = 4281658056. Its totient is φ = 1350605376.

The previous prime is 2777783027. The next prime is 2777783077. The reversal of 2777783066 is 6603877772.

It can be written as a sum of positive squares in 4 ways, for example, as 2536633225 + 241149841 = 50365^2 + 15529^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2777782999 and 2777783017.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138380 + ... + 157176.

Almost surely, 2^2777783066 is an apocalyptic number.

2777783066 is a deficient number, since it is larger than the sum of its proper divisors (1503874990).

2777783066 is a wasteful number, since it uses less digits than its factorization.

2777783066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20833.

The product of its (nonzero) digits is 4148928, while the sum is 53.

The square root of 2777783066 is about 52704.6778379301. The cubic root of 2777783066 is about 1405.7220008876.

The spelling of 2777783066 in words is "two billion, seven hundred seventy-seven million, seven hundred eighty-three thousand, sixty-six".