1228386378806 has 8 divisors (see below), whose sum is σ = 1939557440280. Its totient is φ = 581867232048.

The previous prime is 1228386378803. The next prime is 1228386378823. The reversal of 1228386378806 is 6088736838221.

It is a happy number.

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

It is a super-2 number, since 2×1228386378806² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1228386378803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16162978631 + ... + 16162978706.

It is an arithmetic number, because the mean of its divisors is an integer number (242444680035).

Almost surely, 2^{1228386378806} is an apocalyptic number.

1228386378806 is a deficient number, since it is larger than the sum of its proper divisors (711171061474).

1228386378806 is a wasteful number, since it uses less digits than its factorization.

1228386378806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32325957358.

The product of its (nonzero) digits is 37158912, while the sum is 62.

The spelling of 1228386378806 in words is "one trillion, two hundred twenty-eight billion, three hundred eighty-six million, three hundred seventy-eight thousand, eight hundred six".