1368217521336 has 128 divisors (see below), whose sum is σ = 3725360527680. Its totient is φ = 417000923136.

The previous prime is 1368217521313. The next prime is 1368217521347. The reversal of 1368217521336 is 6331257128631.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9788290 + ... + 9927086.

Almost surely, 2^{1368217521336} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1368217521336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1862680263840).

1368217521336 is an abundant number, since it is smaller than the sum of its proper divisors (2357143006344).

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

1368217521336 is a wasteful number, since it uses less digits than its factorization.

1368217521336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139513 (or 139509 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 48.

The spelling of 1368217521336 in words is "one trillion, three hundred sixty-eight billion, two hundred seventeen million, five hundred twenty-one thousand, three hundred thirty-six".