1244287215360 has 1728 divisors, whose sum is σ = 5303346048000. Its totient is φ = 279165616128.

The previous prime is 1244287215359. The next prime is 1244287215373. The reversal of 1244287215360 is 635127824421.

1244287215360 is a `hidden beast` number, since 1 + 2 + 4 + 4 + 287 + 2 + 1 + 5 + 360 = 666.

It is a tau number, because it is divible by the number of its divisors (1728).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 11415478986 + ... + 11415479094.

It is an arithmetic number, because the mean of its divisors is an integer number (3069066000).

Almost surely, 2^{1244287215360} is an apocalyptic number.

1244287215360 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 1244287215360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2651673024000).

1244287215360 is an abundant number, since it is smaller than the sum of its proper divisors (4059058832640).

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

1244287215360 is an equidigital number, since it uses as much as digits as its factorization.

1244287215360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273 (or 233 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The spelling of 1244287215360 in words is "one trillion, two hundred forty-four billion, two hundred eighty-seven million, two hundred fifteen thousand, three hundred sixty".