1227726985896 has 128 divisors (see below), whose sum is σ = 3590784768000. Its totient is φ = 387601765056.

The previous prime is 1227726985853. The next prime is 1227726985931. The reversal of 1227726985896 is 6985896277221.

1227726985896 is a `hidden beast` number, since 1 + 2 + 277 + 269 + 8 + 5 + 8 + 96 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16489665 + ... + 16563951.

It is an arithmetic number, because the mean of its divisors is an integer number (28053006000).

Almost surely, 2^{1227726985896} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1227726985896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1795392384000).

1227726985896 is an abundant number, since it is smaller than the sum of its proper divisors (2363057782104).

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

1227726985896 is a wasteful number, since it uses less digits than its factorization.

1227726985896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78348 (or 78338 counting only the distinct ones).

The product of its digits is 365783040, while the sum is 72.

The spelling of 1227726985896 in words is "one trillion, two hundred twenty-seven billion, seven hundred twenty-six million, nine hundred eighty-five thousand, eight hundred ninety-six".