509909689353 has 16 divisors (see below), whose sum is σ = 719905734720. Its totient is φ = 319928564736.

The previous prime is 509909689327. The next prime is 509909689361. The reversal of 509909689353 is 353986909905.

509909689353 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 509909689353 - 2²² = 509905495049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (509909689363) 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, 942753 + ... + 1381521.

It is an arithmetic number, because the mean of its divisors is an integer number (44994108420).

Almost surely, 2^509909689353 is an apocalyptic number.

It is an amenable number.

509909689353 is a deficient number, since it is larger than the sum of its proper divisors (209996045367).

509909689353 is a wasteful number, since it uses less digits than its factorization.

509909689353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461576.

The product of its (nonzero) digits is 70858800, while the sum is 66.

The spelling of 509909689353 in words is "five hundred nine billion, nine hundred nine million, six hundred eighty-nine thousand, three hundred fifty-three".