509469444673 has 8 divisors (see below), whose sum is σ = 582467024448. Its totient is φ = 436525922544.

The previous prime is 509469444611. The next prime is 509469444769. The reversal of 509469444673 is 376444964905.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-509469444673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (509469444173) 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, 13494211 + ... + 13531912.

It is an arithmetic number, because the mean of its divisors is an integer number (72808378056).

Almost surely, 2^509469444673 is an apocalyptic number.

It is an amenable number.

509469444673 is a deficient number, since it is larger than the sum of its proper divisors (72997579775).

509469444673 is a wasteful number, since it uses less digits than its factorization.

509469444673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27028823.

The product of its (nonzero) digits is 78382080, while the sum is 61.

The spelling of 509469444673 in words is "five hundred nine billion, four hundred sixty-nine million, four hundred forty-four thousand, six hundred seventy-three".