109459738945 has 4 divisors (see below), whose sum is σ = 131351686740. Its totient is φ = 87567791152.

The previous prime is 109459738943. The next prime is 109459739017. The reversal of 109459738945 is 549837954901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 549837954901 = 11257 ⋅48844093.

It can be written as a sum of positive squares in 2 ways, for example, as 82829415601 + 26630323344 = 287801^2 + 163188^2 .

It is a cyclic number.

It is not a de Polignac number, because 109459738945 - 2¹ = 109459738943 is a prime.

It is not an unprimeable number, because it can be changed into a prime (109459738943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10945973890 + ... + 10945973899.

It is an arithmetic number, because the mean of its divisors is an integer number (32837921685).

Almost surely, 2^109459738945 is an apocalyptic number.

It is an amenable number.

109459738945 is a deficient number, since it is larger than the sum of its proper divisors (21891947795).

109459738945 is an equidigital number, since it uses as much as digits as its factorization.

109459738945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21891947794.

The product of its (nonzero) digits is 48988800, while the sum is 64.

The spelling of 109459738945 in words is "one hundred nine billion, four hundred fifty-nine million, seven hundred thirty-eight thousand, nine hundred forty-five".