1227726985968 has 60 divisors (see below), whose sum is σ = 3926777585328. Its totient is φ = 350779138560.

The previous prime is 1227726985957. The next prime is 1227726985981. The reversal of 1227726985968 is 8695896277221.

1227726985968 is a `hidden beast` number, since 1 + 2 + 2 + 7 + 7 + 26 + 9 + 8 + 596 + 8 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 1227726985896 and 1227726985905.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 608990553 + ... + 608992568.

Almost surely, 2^{1227726985968} is an apocalyptic number.

1227726985968 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1227726985968 is an abundant number, since it is smaller than the sum of its proper divisors (2699050599360).

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

1227726985968 is a wasteful number, since it uses less digits than its factorization.

1227726985968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1217983142 (or 1217983133 counting only the distinct ones).

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

The spelling of 1227726985968 in words is "one trillion, two hundred twenty-seven billion, seven hundred twenty-six million, nine hundred eighty-five thousand, nine hundred sixty-eight".