509069948671 has 4 divisors (see below), whose sum is σ = 509083246512. Its totient is φ = 509056650832.

The previous prime is 509069948633. The next prime is 509069948677. The reversal of 509069948671 is 176849960905.

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 509069948671 - 2¹⁵ = 509069915903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (509069948677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6591331 + ... + 6668116.

It is an arithmetic number, because the mean of its divisors is an integer number (127270811628).

Almost surely, 2^509069948671 is an apocalyptic number.

509069948671 is a deficient number, since it is larger than the sum of its proper divisors (13297841).

509069948671 is a wasteful number, since it uses less digits than its factorization.

509069948671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13297840.

The product of its (nonzero) digits is 29393280, while the sum is 64.

The spelling of 509069948671 in words is "five hundred nine billion, sixty-nine million, nine hundred forty-eight thousand, six hundred seventy-one".