509380387269 has 16 divisors (see below), whose sum is σ = 738253680192. Its totient is φ = 310535273088.

The previous prime is 509380387267. The next prime is 509380387277. The reversal of 509380387269 is 962783083905.

It is not a de Polignac number, because 509380387269 - 2¹ = 509380387267 is a prime.

It is a super-2 number, since 2×509380387269² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (509380387261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61028704 + ... + 61037049.

It is an arithmetic number, because the mean of its divisors is an integer number (46140855012).

Almost surely, 2^509380387269 is an apocalyptic number.

It is an amenable number.

509380387269 is a deficient number, since it is larger than the sum of its proper divisors (228873292923).

509380387269 is a wasteful number, since it uses less digits than its factorization.

509380387269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122065876.

The product of its (nonzero) digits is 19595520, while the sum is 60.

The spelling of 509380387269 in words is "five hundred nine billion, three hundred eighty million, three hundred eighty-seven thousand, two hundred sixty-nine".