542886686 has 4 divisors (see below), whose sum is σ = 814330032. Its totient is φ = 271443342.

The previous prime is 542886637. The next prime is 542886697. The reversal of 542886686 is 686688245.

542886686 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135721670 + ... + 135721673.

It is an arithmetic number, because the mean of its divisors is an integer number (203582508).

Almost surely, 2^542886686 is an apocalyptic number.

542886686 is a deficient number, since it is larger than the sum of its proper divisors (271443346).

542886686 is a wasteful number, since it uses less digits than its factorization.

542886686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271443345.

The product of its digits is 4423680, while the sum is 53.

The square root of 542886686 is about 23299.9288840116. The cubic root of 542886686 is about 815.7737572432.

The spelling of 542886686 in words is "five hundred forty-two million, eight hundred eighty-six thousand, six hundred eighty-six".