535808389081 has 16 divisors (see below), whose sum is σ = 629067752064. Its totient is φ = 446734376064.

The previous prime is 535808389069. The next prime is 535808389133. The reversal of 535808389081 is 180983808535.

It is a cyclic number.

It is not a de Polignac number, because 535808389081 - 2¹⁹ = 535807864793 is a prime.

It is a super-2 number, since 2×535808389081² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (535808389981) 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, 722886 + ... + 1262608.

It is an arithmetic number, because the mean of its divisors is an integer number (39316734504).

Almost surely, 2^535808389081 is an apocalyptic number.

It is an amenable number.

535808389081 is a deficient number, since it is larger than the sum of its proper divisors (93259362983).

535808389081 is a wasteful number, since it uses less digits than its factorization.

535808389081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543600.

The product of its (nonzero) digits is 8294400, while the sum is 58.

The spelling of 535808389081 in words is "five hundred thirty-five billion, eight hundred eight million, three hundred eighty-nine thousand, eighty-one".