1344881681280 has 512 divisors, whose sum is σ = 4798828108800. Its totient is φ = 355959152640.

The previous prime is 1344881681263. The next prime is 1344881681293. The reversal of 1344881681280 is 821861884431.

1344881681280 is a `hidden beast` number, since 1 + 3 + 4 + 488 + 1 + 6 + 81 + 2 + 80 = 666.

It is a super-3 number, since 3×1344881681280³ (a number of 37 digits) contains 333 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2458649967 + ... + 2458650513.

It is an arithmetic number, because the mean of its divisors is an integer number (9372711150).

Almost surely, 2^{1344881681280} is an apocalyptic number.

1344881681280 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 1344881681280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2399414054400).

1344881681280 is an abundant number, since it is smaller than the sum of its proper divisors (3453946427520).

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

1344881681280 is a wasteful number, since it uses less digits than its factorization.

1344881681280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379 (or 1361 counting only the distinct ones).

The product of its (nonzero) digits is 2359296, while the sum is 54.

The spelling of 1344881681280 in words is "one trillion, three hundred forty-four billion, eight hundred eighty-one million, six hundred eighty-one thousand, two hundred eighty".