509674543323 has 16 divisors (see below), whose sum is σ = 748273251456. Its totient is φ = 306006803840.

The previous prime is 509674543321. The next prime is 509674543333. The reversal of 509674543323 is 323345476905.

It is a cyclic number.

It is not a de Polignac number, because 509674543323 - 2¹ = 509674543321 is a prime.

It is a super-2 number, since 2×509674543323² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (509674543321) 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, 72167886 + ... + 72174947.

It is an arithmetic number, because the mean of its divisors is an integer number (46767078216).

Almost surely, 2^509674543323 is an apocalyptic number.

509674543323 is a deficient number, since it is larger than the sum of its proper divisors (238598708133).

509674543323 is a wasteful number, since it uses less digits than its factorization.

509674543323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144342954.

The product of its (nonzero) digits is 8164800, while the sum is 51.

The spelling of 509674543323 in words is "five hundred nine billion, six hundred seventy-four million, five hundred forty-three thousand, three hundred twenty-three".