109241747891 has 8 divisors (see below), whose sum is σ = 111110097600. Its totient is φ = 107373958120.

The previous prime is 109241747843. The next prime is 109241747903. The reversal of 109241747891 is 198747142901.

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 109241747891 - 2³⁴ = 92061878707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109241747831) 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, 263396 + ... + 536526.

It is an arithmetic number, because the mean of its divisors is an integer number (13888762200).

Almost surely, 2^109241747891 is an apocalyptic number.

109241747891 is a deficient number, since it is larger than the sum of its proper divisors (1868349709).

109241747891 is an equidigital number, since it uses as much as digits as its factorization.

109241747891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279969.

The product of its (nonzero) digits is 1016064, while the sum is 53.

The spelling of 109241747891 in words is "one hundred nine billion, two hundred forty-one million, seven hundred forty-seven thousand, eight hundred ninety-one".