285538538111 has 16 divisors (see below), whose sum is σ = 291436704000. Its totient is φ = 279659847168.

The previous prime is 285538538059. The next prime is 285538538141. The reversal of 285538538111 is 111835835582.

It is a cyclic number.

It is not a de Polignac number, because 285538538111 - 2²⁶ = 285471429247 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 285538538111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285538538141) 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, 118136375 + ... + 118138791.

It is an arithmetic number, because the mean of its divisors is an integer number (18214794000).

Almost surely, 2^285538538111 is an apocalyptic number.

285538538111 is a deficient number, since it is larger than the sum of its proper divisors (5898165889).

285538538111 is a wasteful number, since it uses less digits than its factorization.

285538538111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5458.

The product of its digits is 1152000, while the sum is 50.

The spelling of 285538538111 in words is "two hundred eighty-five billion, five hundred thirty-eight million, five hundred thirty-eight thousand, one hundred eleven".