283278282778 has 4 divisors (see below), whose sum is σ = 424917424170. Its totient is φ = 141639141388.

The previous prime is 283278282767. The next prime is 283278282779. The reversal of 283278282778 is 877282872382.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 252710306209 + 30567976569 = 502703^2 + 174837^2 .

It is not an unprimeable number, because it can be changed into a prime (283278282779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70819570693 + ... + 70819570696.

Almost surely, 2^283278282778 is an apocalyptic number.

283278282778 is a deficient number, since it is larger than the sum of its proper divisors (141639141392).

283278282778 is a wasteful number, since it uses less digits than its factorization.

283278282778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141639141391.

The product of its digits is 67436544, while the sum is 64.

The spelling of 283278282778 in words is "two hundred eighty-three billion, two hundred seventy-eight million, two hundred eighty-two thousand, seven hundred seventy-eight".