538869111 has 24 divisors (see below), whose sum is σ = 832642944. Its totient is φ = 307370880.

The previous prime is 538869091. The next prime is 538869113. The reversal of 538869111 is 111968835.

It is not a de Polignac number, because 538869111 - 2⁷ = 538868983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538869113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18715 + ... + 37788.

It is an arithmetic number, because the mean of its divisors is an integer number (34693456).

Almost surely, 2^538869111 is an apocalyptic number.

538869111 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

538869111 is a deficient number, since it is larger than the sum of its proper divisors (293773833).

538869111 is a wasteful number, since it uses less digits than its factorization.

538869111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56551 (or 56534 counting only the distinct ones).

The product of its digits is 51840, while the sum is 42.

The square root of 538869111 is about 23213.5544671642. The cubic root of 538869111 is about 813.7564237897.

The spelling of 538869111 in words is "five hundred thirty-eight million, eight hundred sixty-nine thousand, one hundred eleven".