109338019569 has 9 divisors (see below), whose sum is σ = 157934127819. Its totient is φ = 72891351720.

The previous prime is 109338019543. The next prime is 109338019589. The reversal of 109338019569 is 965910833901.

The square root of 109338019569 is 330663.

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

109338019569 is a `hidden beast` number, since 10 + 9 + 3 + 380 + 195 + 69 = 666.

It can be written as a sum of positive squares in only one way, i.e., 15150409569 + 94187610000 = 123087^2 + 306900^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 109338019569 - 2¹⁵ = 109337986801 is a prime.

It is a super-2 number, since 2×109338019569² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (109338019529) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 936879 + ... + 1047099.

Almost surely, 2^109338019569 is an apocalyptic number.

109338019569 is the 330663-rd square number.

109338019569 is the 165332-nd centered octagonal number.

It is an amenable number.

109338019569 is a deficient number, since it is larger than the sum of its proper divisors (48596108250).

109338019569 is an frugal number, since it uses more digits than its factorization.

109338019569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220448 (or 110224 counting only the distinct ones).

The product of its (nonzero) digits is 1574640, while the sum is 54.

The spelling of 109338019569 in words is "one hundred nine billion, three hundred thirty-eight million, nineteen thousand, five hundred sixty-nine".