509430325387 has 2 divisors, whose sum is σ = 509430325388. Its totient is φ = 509430325386.

The previous prime is 509430325361. The next prime is 509430325403. The reversal of 509430325387 is 783523034905.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-509430325387 is a prime.

It is a super-5 number, since 5×509430325387⁵ (a number of 60 digits) contains 55555 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 509430325387.

It is not a weakly prime, because it can be changed into another prime (509430328387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 254715162693 + 254715162694.

It is an arithmetic number, because the mean of its divisors is an integer number (254715162694).

Almost surely, 2^509430325387 is an apocalyptic number.

509430325387 is a deficient number, since it is larger than the sum of its proper divisors (1).

509430325387 is an equidigital number, since it uses as much as digits as its factorization.

509430325387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2721600, while the sum is 49.

The spelling of 509430325387 in words is "five hundred nine billion, four hundred thirty million, three hundred twenty-five thousand, three hundred eighty-seven".