1728387112830 has 128 divisors (see below), whose sum is σ = 4842633019392. Its totient is φ = 386570713728.

The previous prime is 1728387112787. The next prime is 1728387112867. The reversal of 1728387112830 is 382117838271.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 53153437 + ... + 53185943.

It is an arithmetic number, because the mean of its divisors is an integer number (37833070464).

Almost surely, 2^{1728387112830} is an apocalyptic number.

1728387112830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1728387112830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2421316509696).

1728387112830 is an abundant number, since it is smaller than the sum of its proper divisors (3114245906562).

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

1728387112830 is a wasteful number, since it uses less digits than its factorization.

1728387112830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37958.

The product of its (nonzero) digits is 903168, while the sum is 51.

The spelling of 1728387112830 in words is "one trillion, seven hundred twenty-eight billion, three hundred eighty-seven million, one hundred twelve thousand, eight hundred thirty".