2783052778 has 32 divisors (see below), whose sum is σ = 4841311680. Its totient is φ = 1186560000.

The previous prime is 2783052761. The next prime is 2783052781. The reversal of 2783052778 is 8772503872.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9258 + ... + 75178.

It is an arithmetic number, because the mean of its divisors is an integer number (151290990).

Almost surely, 2^2783052778 is an apocalyptic number.

2783052778 is a deficient number, since it is larger than the sum of its proper divisors (2058258902).

2783052778 is a wasteful number, since it uses less digits than its factorization.

2783052778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66054.

The product of its (nonzero) digits is 1317120, while the sum is 49.

The square root of 2783052778 is about 52754.6469801476. The cubic root of 2783052778 is about 1406.6103676721.

It can be divided in two parts, 27830 and 52778, that added together give a palindrome (80608).

The spelling of 2783052778 in words is "two billion, seven hundred eighty-three million, fifty-two thousand, seven hundred seventy-eight".