75109744243 has 4 divisors (see below), whose sum is σ = 75701159680. Its totient is φ = 74518328808.

The previous prime is 75109744231. The next prime is 75109744271. The reversal of 75109744243 is 34244790157.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 75109744243 - 2¹⁷ = 75109613171 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75109744193 and 75109744202.

It is not an unprimeable number, because it can be changed into a prime (75109744273) 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, 295707528 + ... + 295707781.

It is an arithmetic number, because the mean of its divisors is an integer number (18925289920).

Almost surely, 2^75109744243 is an apocalyptic number.

75109744243 is a deficient number, since it is larger than the sum of its proper divisors (591415437).

75109744243 is a wasteful number, since it uses less digits than its factorization.

75109744243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591415436.

The product of its (nonzero) digits is 846720, while the sum is 46.

The spelling of 75109744243 in words is "seventy-five billion, one hundred nine million, seven hundred forty-four thousand, two hundred forty-three".