109869159245 has 4 divisors (see below), whose sum is σ = 131842991100. Its totient is φ = 87895327392.

The previous prime is 109869159227. The next prime is 109869159247. The reversal of 109869159245 is 542951968901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 542951968901 = 19681 ⋅27587621.

It can be written as a sum of positive squares in 2 ways, for example, as 67332984196 + 42536175049 = 259486^2 + 206243^2 .

It is a cyclic number.

It is not a de Polignac number, because 109869159245 - 2¹⁴ = 109869142861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109869159247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10986915920 + ... + 10986915929.

It is an arithmetic number, because the mean of its divisors is an integer number (32960747775).

Almost surely, 2^109869159245 is an apocalyptic number.

It is an amenable number.

109869159245 is a deficient number, since it is larger than the sum of its proper divisors (21973831855).

109869159245 is an equidigital number, since it uses as much as digits as its factorization.

109869159245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21973831854.

The product of its (nonzero) digits is 6998400, while the sum is 59.

The spelling of 109869159245 in words is "one hundred nine billion, eight hundred sixty-nine million, one hundred fifty-nine thousand, two hundred forty-five".