1728068515398 has 96 divisors (see below), whose sum is σ = 3963060541440. Its totient is φ = 543459248640.

The previous prime is 1728068515373. The next prime is 1728068515409. The reversal of 1728068515398 is 8935158608271.

1728068515398 is a `hidden beast` number, since 1 + 7 + 2 + 80 + 6 + 8 + 515 + 39 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3388183 + ... + 3864701.

It is an arithmetic number, because the mean of its divisors is an integer number (41281880640).

Almost surely, 2^{1728068515398} is an apocalyptic number.

1728068515398 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1728068515398, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1981530270720).

1728068515398 is an abundant number, since it is smaller than the sum of its proper divisors (2234992026042).

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

1728068515398 is a wasteful number, since it uses less digits than its factorization.

1728068515398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476722 (or 476719 counting only the distinct ones).

The product of its (nonzero) digits is 29030400, while the sum is 63.

The spelling of 1728068515398 in words is "one trillion, seven hundred twenty-eight billion, sixty-eight million, five hundred fifteen thousand, three hundred ninety-eight".