1728068515428 has 24 divisors (see below), whose sum is σ = 4036864864032. Its totient is φ = 575350696384.

The previous prime is 1728068515421. The next prime is 1728068515457. The reversal of 1728068515428 is 8245158608271.

It is not an unprimeable number, because it can be changed into a prime (1728068515421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84007050 + ... + 84027617.

It is an arithmetic number, because the mean of its divisors is an integer number (168202702668).

Almost surely, 2^{1728068515428} is an apocalyptic number.

It is an amenable number.

1728068515428 is an abundant number, since it is smaller than the sum of its proper divisors (2308796348604).

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

1728068515428 is a wasteful number, since it uses less digits than its factorization.

1728068515428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168035531 (or 168035529 counting only the distinct ones).

The product of its (nonzero) digits is 8601600, while the sum is 57.

The spelling of 1728068515428 in words is "one trillion, seven hundred twenty-eight billion, sixty-eight million, five hundred fifteen thousand, four hundred twenty-eight".