108993069563 has 4 divisors (see below), whose sum is σ = 124563508080. Its totient is φ = 93422631048.

The previous prime is 108993069557. The next prime is 108993069571. The reversal of 108993069563 is 365960399801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 365960399801 = 163 ⋅2245155827.

It is a cyclic number.

It is not a de Polignac number, because 108993069563 - 2⁴ = 108993069547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108993069863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7785219248 + ... + 7785219261.

It is an arithmetic number, because the mean of its divisors is an integer number (31140877020).

Almost surely, 2^108993069563 is an apocalyptic number.

108993069563 is a deficient number, since it is larger than the sum of its proper divisors (15570438517).

108993069563 is an equidigital number, since it uses as much as digits as its factorization.

108993069563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15570438516.

The product of its (nonzero) digits is 9447840, while the sum is 59.

The spelling of 108993069563 in words is "one hundred eight billion, nine hundred ninety-three million, sixty-nine thousand, five hundred sixty-three".