109638794643 has 8 divisors (see below), whose sum is σ = 167068639488. Its totient is φ = 62650739784.

The previous prime is 109638794633. The next prime is 109638794647. The reversal of 109638794643 is 346497836901.

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

It is not a de Polignac number, because 109638794643 - 2⁴ = 109638794627 is a prime.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (109638794647) 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, 2610447471 + ... + 2610447512.

It is an arithmetic number, because the mean of its divisors is an integer number (20883579936).

Almost surely, 2^109638794643 is an apocalyptic number.

109638794643 is a deficient number, since it is larger than the sum of its proper divisors (57429844845).

109638794643 is an equidigital number, since it uses as much as digits as its factorization.

109638794643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5220894993.

The product of its (nonzero) digits is 23514624, while the sum is 60.

The spelling of 109638794643 in words is "one hundred nine billion, six hundred thirty-eight million, seven hundred ninety-four thousand, six hundred forty-three".