1228169929068 has 72 divisors (see below), whose sum is σ = 3112714096128. Its totient is φ = 408313005408.

The previous prime is 1228169929009. The next prime is 1228169929069. The reversal of 1228169929068 is 8609299618221.

1228169929068 is a `hidden beast` number, since 1 + 2 + 281 + 6 + 9 + 9 + 290 + 68 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1228169928996 and 1228169929014.

It is not an unprimeable number, because it can be changed into a prime (1228169929069) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37770105 + ... + 37802607.

It is an arithmetic number, because the mean of its divisors is an integer number (43232140224).

Almost surely, 2^{1228169929068} is an apocalyptic number.

1228169929068 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1228169929068 is an abundant number, since it is smaller than the sum of its proper divisors (1884544167060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1228169929068 is a wasteful number, since it uses less digits than its factorization.

1228169929068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35243 (or 35238 counting only the distinct ones).

The product of its (nonzero) digits is 13436928, while the sum is 63.

The spelling of 1228169929068 in words is "one trillion, two hundred twenty-eight billion, one hundred sixty-nine million, nine hundred twenty-nine thousand, sixty-eight".