542706778 has 8 divisors (see below), whose sum is σ = 814347072. Its totient is φ = 271257756.

The previous prime is 542706763. The next prime is 542706797. The reversal of 542706778 is 877607245.

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

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, 40500 + ... + 52207.

It is an arithmetic number, because the mean of its divisors is an integer number (101793384).

Almost surely, 2^542706778 is an apocalyptic number.

542706778 is a deficient number, since it is larger than the sum of its proper divisors (271640294).

542706778 is a wasteful number, since it uses less digits than its factorization.

542706778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95636.

The product of its (nonzero) digits is 658560, while the sum is 46.

The square root of 542706778 is about 23296.0678656292. The cubic root of 542706778 is about 815.6836338074.

The spelling of 542706778 in words is "five hundred forty-two million, seven hundred six thousand, seven hundred seventy-eight".