542128694 has 8 divisors (see below), whose sum is σ = 813291888. Its totient is φ = 271031400.

The previous prime is 542128673. The next prime is 542128703. The reversal of 542128694 is 496821245.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23279 + ... + 40325.

It is an arithmetic number, because the mean of its divisors is an integer number (101661486).

Almost surely, 2^542128694 is an apocalyptic number.

542128694 is a deficient number, since it is larger than the sum of its proper divisors (271163194).

542128694 is a wasteful number, since it uses less digits than its factorization.

542128694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32950.

The product of its digits is 138240, while the sum is 41.

The square root of 542128694 is about 23283.6572299113. The cubic root of 542128694 is about 815.3939124822.

The spelling of 542128694 in words is "five hundred forty-two million, one hundred twenty-eight thousand, six hundred ninety-four".