509114207639 has 32 divisors (see below), whose sum is σ = 556018744320. Its totient is φ = 464369697792.

The previous prime is 509114207633. The next prime is 509114207669. The reversal of 509114207639 is 936702411905.

It is a de Polignac number, because none of the positive numbers 2^k-509114207639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 509114207593 and 509114207602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (509114207633) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25454627 + ... + 25474619.

It is an arithmetic number, because the mean of its divisors is an integer number (17375585760).

Almost surely, 2^509114207639 is an apocalyptic number.

509114207639 is a deficient number, since it is larger than the sum of its proper divisors (46904536681).

509114207639 is a wasteful number, since it uses less digits than its factorization.

509114207639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20439.

The product of its (nonzero) digits is 408240, while the sum is 47.

The spelling of 509114207639 in words is "five hundred nine billion, one hundred fourteen million, two hundred seven thousand, six hundred thirty-nine".