1369728818000 has 80 divisors (see below), whose sum is σ = 3319655351376. Its totient is φ = 546625843200.

The previous prime is 1369728817981. The next prime is 1369728818023. The reversal of 1369728818000 is 8188279631.

It can be written as a sum of positive squares in 8 ways, for example, as 339105899584 + 1030622918416 = 582328^2 + 1015196^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75164 + ... + 1656836.

Almost surely, 2^{1369728818000} is an apocalyptic number.

1369728818000 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 1369728818000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1659827675688).

1369728818000 is an abundant number, since it is smaller than the sum of its proper divisors (1949926533376).

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

1369728818000 is a wasteful number, since it uses less digits than its factorization.

1369728818000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1582129 (or 1582113 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 53.

The spelling of 1369728818000 in words is "one trillion, three hundred sixty-nine billion, seven hundred twenty-eight million, eight hundred eighteen thousand".