538481899 has 4 divisors (see below), whose sum is σ = 538541136. Its totient is φ = 538422664.

The previous prime is 538481893. The next prime is 538481959. The reversal of 538481899 is 998184835.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-538481899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (538481893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12799 + ... + 35224.

It is an arithmetic number, because the mean of its divisors is an integer number (134635284).

Almost surely, 2^538481899 is an apocalyptic number.

538481899 is a deficient number, since it is larger than the sum of its proper divisors (59237).

538481899 is a wasteful number, since it uses less digits than its factorization.

538481899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59236.

The product of its digits is 2488320, while the sum is 55.

The square root of 538481899 is about 23205.2127548963. The cubic root of 538481899 is about 813.5614650336.

The spelling of 538481899 in words is "five hundred thirty-eight million, four hundred eighty-one thousand, eight hundred ninety-nine".