109134861191 has 8 divisors (see below), whose sum is σ = 113663109024. Its totient is φ = 104689700640.

The previous prime is 109134861169. The next prime is 109134861193. The reversal of 109134861191 is 191168431901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 109134861191 - 2⁶ = 109134861127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109134861193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20769140 + ... + 20774393.

It is an arithmetic number, because the mean of its divisors is an integer number (14207888628).

Almost surely, 2^109134861191 is an apocalyptic number.

109134861191 is a deficient number, since it is larger than the sum of its proper divisors (4528247833).

109134861191 is an equidigital number, since it uses as much as digits as its factorization.

109134861191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41543641.

The product of its (nonzero) digits is 46656, while the sum is 44.

The spelling of 109134861191 in words is "one hundred nine billion, one hundred thirty-four million, eight hundred sixty-one thousand, one hundred ninety-one".