509523874018 has 16 divisors (see below), whose sum is σ = 786279461184. Its totient is φ = 247454181360.

The previous prime is 509523874003. The next prime is 509523874037. The reversal of 509523874018 is 810478325905.

It is a happy number.

It is a super-2 number, since 2×509523874018² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5821518 + ... + 5908393.

It is an arithmetic number, because the mean of its divisors is an integer number (49142466324).

Almost surely, 2^509523874018 is an apocalyptic number.

509523874018 is a deficient number, since it is larger than the sum of its proper divisors (276755587166).

509523874018 is a wasteful number, since it uses less digits than its factorization.

509523874018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11730537.

The product of its (nonzero) digits is 2419200, while the sum is 52.

The spelling of 509523874018 in words is "five hundred nine billion, five hundred twenty-three million, eight hundred seventy-four thousand, eighteen".