108342891247 has 4 divisors (see below), whose sum is σ = 113053451760. Its totient is φ = 103632330736.

The previous prime is 108342891229. The next prime is 108342891257. The reversal of 108342891247 is 742198243801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 742198243801 = 7 ⋅106028320543.

It is a cyclic number.

It is not a de Polignac number, because 108342891247 - 2¹⁵ = 108342858479 is a prime.

It is a Smith number, since the sum of its digits (49) 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 a self number, because there is not a number n which added to its sum of digits gives 108342891247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108342891257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2355280222 + ... + 2355280267.

It is an arithmetic number, because the mean of its divisors is an integer number (28263362940).

Almost surely, 2^108342891247 is an apocalyptic number.

108342891247 is a deficient number, since it is larger than the sum of its proper divisors (4710560513).

108342891247 is an equidigital number, since it uses as much as digits as its factorization.

108342891247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4710560512.

The product of its (nonzero) digits is 774144, while the sum is 49.

The spelling of 108342891247 in words is "one hundred eight billion, three hundred forty-two million, eight hundred ninety-one thousand, two hundred forty-seven".