509364909111 has 16 divisors (see below), whose sum is σ = 684885196800. Its totient is φ = 336716657088.

The previous prime is 509364909103. The next prime is 509364909127. The reversal of 509364909111 is 111909463905.

509364909111 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 509364909111 - 2³ = 509364909103 is a prime.

It is a super-2 number, since 2×509364909111² (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 (509364909191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 417591 + ... + 1092296.

It is an arithmetic number, because the mean of its divisors is an integer number (42805324800).

Almost surely, 2^509364909111 is an apocalyptic number.

509364909111 is a deficient number, since it is larger than the sum of its proper divisors (175520287689).

509364909111 is a wasteful number, since it uses less digits than its factorization.

509364909111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1510838.

The product of its (nonzero) digits is 262440, while the sum is 48.

The spelling of 509364909111 in words is "five hundred nine billion, three hundred sixty-four million, nine hundred nine thousand, one hundred eleven".