1269928018228 has 12 divisors (see below), whose sum is σ = 2223133319232. Its totient is φ = 634747069880.

The previous prime is 1269928018217. The next prime is 1269928018237. The reversal of 1269928018228 is 8228108299621.

It is a super-2 number, since 2×1269928018228² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54221638 + ... + 54245053.

It is an arithmetic number, because the mean of its divisors is an integer number (185261109936).

Almost surely, 2^{1269928018228} is an apocalyptic number.

It is an amenable number.

1269928018228 is a deficient number, since it is larger than the sum of its proper divisors (953205301004).

1269928018228 is a wasteful number, since it uses less digits than its factorization.

1269928018228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108469622 (or 108469620 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 58.

The spelling of 1269928018228 in words is "one trillion, two hundred sixty-nine billion, nine hundred twenty-eight million, eighteen thousand, two hundred twenty-eight".