509323235747 has 2 divisors, whose sum is σ = 509323235748. Its totient is φ = 509323235746.

The previous prime is 509323235731. The next prime is 509323235929. The reversal of 509323235747 is 747532323905.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 509323235747 - 2⁴ = 509323235731 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 509323235695 and 509323235704.

It is not a weakly prime, because it can be changed into another prime (509323235147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 254661617873 + 254661617874.

It is an arithmetic number, because the mean of its divisors is an integer number (254661617874).

Almost surely, 2^509323235747 is an apocalyptic number.

509323235747 is a deficient number, since it is larger than the sum of its proper divisors (1).

509323235747 is an equidigital number, since it uses as much as digits as its factorization.

509323235747 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4762800, while the sum is 50.

The spelling of 509323235747 in words is "five hundred nine billion, three hundred twenty-three million, two hundred thirty-five thousand, seven hundred forty-seven".