115747194236569 has 45 divisors (see below), whose sum is σ = 136619979785727. Its totient is φ = 98057376803232.

The previous prime is 115747194236567. The next prime is 115747194236603. The reversal of 115747194236569 is 965632491747511.

The square root of 115747194236569 is 10758587.

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

It can be written as a sum of positive squares in only one way, i.e., 22225916226969 + 93521278009600 = 4714437^2 + 9670640^2 .

It is not a de Polignac number, because 115747194236569 - 2¹ = 115747194236567 is a prime.

It is a super-2 number, since 2×115747194236569² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 115747194236498 and 115747194236507.

It is not an unprimeable number, because it can be changed into a prime (115747194236561) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 46918196674 + ... + 46918199140.

Almost surely, 2^{115747194236569} is an apocalyptic number.

115747194236569 is the 10758587-th square number.

115747194236569 is the 5379294-th centered octagonal number.

It is an amenable number.

115747194236569 is a deficient number, since it is larger than the sum of its proper divisors (20872785549158).

115747194236569 is an frugal number, since it uses more digits than its factorization.

115747194236569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5140 (or 2563 counting only the distinct ones).

The product of its digits is 342921600, while the sum is 70.

The spelling of 115747194236569 in words is "one hundred fifteen trillion, seven hundred forty-seven billion, one hundred ninety-four million, two hundred thirty-six thousand, five hundred sixty-nine".