12411384778 has 8 divisors (see below), whose sum is σ = 20049160068. Its totient is φ = 5728331424.

The previous prime is 12411384761. The next prime is 12411384793. The reversal of 12411384778 is 87748311421.

It can be written as a sum of positive squares in 2 ways, for example, as 12406172689 + 5212089 = 111383^2 + 2283^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 238680451 + ... + 238680502.

Almost surely, 2^12411384778 is an apocalyptic number.

12411384778 is a deficient number, since it is larger than the sum of its proper divisors (7637775290).

12411384778 is a wasteful number, since it uses less digits than its factorization.

12411384778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477360968.

The product of its digits is 301056, while the sum is 46.

The spelling of 12411384778 in words is "twelve billion, four hundred eleven million, three hundred eighty-four thousand, seven hundred seventy-eight".