75489073209 has 12 divisors (see below), whose sum is σ = 118952479152. Its totient is φ = 45750953400.

The previous prime is 75489073157. The next prime is 75489073211. The reversal of 75489073209 is 90237098457.

75489073209 is a `hidden beast` number, since 7 + 548 + 9 + 0 + 73 + 20 + 9 = 666.

It is not a de Polignac number, because 75489073209 - 2¹³ = 75489065017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (75489073259) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 381257847 + ... + 381258044.

It is an arithmetic number, because the mean of its divisors is an integer number (9912706596).

Almost surely, 2^75489073209 is an apocalyptic number.

It is an amenable number.

75489073209 is a deficient number, since it is larger than the sum of its proper divisors (43463405943).

75489073209 is a wasteful number, since it uses less digits than its factorization.

75489073209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762515908 (or 762515905 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 54.

The spelling of 75489073209 in words is "seventy-five billion, four hundred eighty-nine million, seventy-three thousand, two hundred nine".