109546904785 has 4 divisors (see below), whose sum is σ = 131456285748. Its totient is φ = 87637523824.

The previous prime is 109546904771. The next prime is 109546904801. The reversal of 109546904785 is 587409645901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 587409645901 = 13 ⋅45185357377.

It can be written as a sum of positive squares in 2 ways, for example, as 18390614544 + 91156290241 = 135612^2 + 301921^2 .

It is a cyclic number.

It is not a de Polignac number, because 109546904785 - 2²¹ = 109544807633 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10954690474 + ... + 10954690483.

It is an arithmetic number, because the mean of its divisors is an integer number (32864071437).

Almost surely, 2^109546904785 is an apocalyptic number.

It is an amenable number.

109546904785 is a deficient number, since it is larger than the sum of its proper divisors (21909380963).

109546904785 is an equidigital number, since it uses as much as digits as its factorization.

109546904785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21909380962.

The product of its (nonzero) digits is 10886400, while the sum is 58.

The spelling of 109546904785 in words is "one hundred nine billion, five hundred forty-six million, nine hundred four thousand, seven hundred eighty-five".