1244985477120 has 1728 divisors, whose sum is σ = 5568527502720. Its totient is φ = 254332108800.

The previous prime is 1244985477067. The next prime is 1244985477173. The reversal of 1244985477120 is 217745894421.

It is a happy number.

1244985477120 is a `hidden beast` number, since 1 + 2 + 4 + 4 + 9 + 8 + 547 + 71 + 20 = 666.

It is an interprime number because it is at equal distance from previous prime (1244985477067) and next prime (1244985477173).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 3526870864 + ... + 3526871216.

It is an arithmetic number, because the mean of its divisors is an integer number (3222527490).

Almost surely, 2^{1244985477120} is an apocalyptic number.

1244985477120 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 1244985477120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2784263751360).

1244985477120 is an abundant number, since it is smaller than the sum of its proper divisors (4323542025600).

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

1244985477120 is a wasteful number, since it uses less digits than its factorization.

1244985477120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482 (or 452 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 54.

The spelling of 1244985477120 in words is "one trillion, two hundred forty-four billion, nine hundred eighty-five million, four hundred seventy-seven thousand, one hundred twenty".