1346659888728 has 288 divisors, whose sum is σ = 4363703048880. Its totient is φ = 344987596800.

The previous prime is 1346659888711. The next prime is 1346659888729. The reversal of 1346659888728 is 8278889566431.

It is a self number, because there is not a number n which added to its sum of digits gives 1346659888728.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1346659888729) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 10322788 + ... + 10452428.

Almost surely, 2^{1346659888728} 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 1346659888728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2181851524440).

1346659888728 is an abundant number, since it is smaller than the sum of its proper divisors (3017043160152).

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

1346659888728 is a wasteful number, since it uses less digits than its factorization.

1346659888728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129759 (or 129737 counting only the distinct ones).

The product of its digits is 1114767360, while the sum is 75.

The spelling of 1346659888728 in words is "one trillion, three hundred forty-six billion, six hundred fifty-nine million, eight hundred eighty-eight thousand, seven hundred twenty-eight".