75289399509 has 8 divisors (see below), whose sum is σ = 100890318400. Its totient is φ = 49940706816.

The previous prime is 75289399483. The next prime is 75289399513. The reversal of 75289399509 is 90599398257.

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

It is not a de Polignac number, because 75289399509 - 2⁹ = 75289398997 is a prime.

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 75289399509.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75289399529) 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, 63055852 + ... + 63057045.

It is an arithmetic number, because the mean of its divisors is an integer number (12611289800).

Almost surely, 2^75289399509 is an apocalyptic number.

It is an amenable number.

75289399509 is a deficient number, since it is larger than the sum of its proper divisors (25600918891).

75289399509 is a wasteful number, since it uses less digits than its factorization.

75289399509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126113099.

The product of its (nonzero) digits is 55112400, while the sum is 66.

The spelling of 75289399509 in words is "seventy-five billion, two hundred eighty-nine million, three hundred ninety-nine thousand, five hundred nine".