19130712533689 has 27 divisors (see below), whose sum is σ = 20249975669677. Its totient is φ = 18072398552768.

The previous prime is 19130712533671. The next prime is 19130712533693. The reversal of 19130712533689 is 98633521703191.

The square root of 19130712533689 is 4373867.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 148134923689 + 18982577610000 = 384883^2 + 4356900^2 .

It is not a de Polignac number, because 19130712533689 - 2³⁷ = 18993273580217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19130712533629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 5961579117 + ... + 5961582325.

Almost surely, 2^{19130712533689} is an apocalyptic number.

19130712533689 is the 4373867-th square number.

19130712533689 is the 2186934-th centered octagonal number.

It is an amenable number.

19130712533689 is a deficient number, since it is larger than the sum of its proper divisors (1119263135988).

19130712533689 is an frugal number, since it uses more digits than its factorization.

19130712533689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6570 (or 3285 counting only the distinct ones).

The product of its (nonzero) digits is 7348320, while the sum is 58.

The spelling of 19130712533689 in words is "nineteen trillion, one hundred thirty billion, seven hundred twelve million, five hundred thirty-three thousand, six hundred eighty-nine".