1223286727680 has 704 divisors, whose sum is σ = 4446492744960. Its totient is φ = 322844590080.

The previous prime is 1223286727669. The next prime is 1223286727703. The reversal of 1223286727680 is 867276823221.

1223286727680 is a `hidden beast` number, since 1 + 2 + 232 + 8 + 67 + 276 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1198125570 + ... + 1198126590.

Almost surely, 2^{1223286727680} is an apocalyptic number.

1223286727680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1223286727680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2223246372480).

1223286727680 is an abundant number, since it is smaller than the sum of its proper divisors (3223206017280).

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

1223286727680 is an equidigital number, since it uses as much as digits as its factorization.

1223286727680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1174 (or 1138 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 54.

The spelling of 1223286727680 in words is "one trillion, two hundred twenty-three billion, two hundred eighty-six million, seven hundred twenty-seven thousand, six hundred eighty".