2812246778 has 16 divisors (see below), whose sum is σ = 4750306560. Its totient is φ = 1237058400.

The previous prime is 2812246771. The next prime is 2812246799. The reversal of 2812246778 is 8776422182.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2812246771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2061083 + ... + 2062446.

It is an arithmetic number, because the mean of its divisors is an integer number (296894160).

Almost surely, 2^2812246778 is an apocalyptic number.

2812246778 is a deficient number, since it is larger than the sum of its proper divisors (1938059782).

2812246778 is a wasteful number, since it uses less digits than its factorization.

2812246778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4123573.

The product of its digits is 602112, while the sum is 47.

The square root of 2812246778 is about 53030.6211353403. The cubic root of 2812246778 is about 1411.5116792012.

The spelling of 2812246778 in words is "two billion, eight hundred twelve million, two hundred forty-six thousand, seven hundred seventy-eight".