509513957087 has 2 divisors, whose sum is σ = 509513957088. Its totient is φ = 509513957086.

The previous prime is 509513957027. The next prime is 509513957111. The reversal of 509513957087 is 780759315905.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 509513957087 - 2¹⁴ = 509513940703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (509513957027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 254756978543 + 254756978544.

It is an arithmetic number, because the mean of its divisors is an integer number (254756978544).

Almost surely, 2^509513957087 is an apocalyptic number.

509513957087 is a deficient number, since it is larger than the sum of its proper divisors (1).

509513957087 is an equidigital number, since it uses as much as digits as its factorization.

509513957087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11907000, while the sum is 59.

The spelling of 509513957087 in words is "five hundred nine billion, five hundred thirteen million, nine hundred fifty-seven thousand, eighty-seven".