542777766 has 8 divisors (see below), whose sum is σ = 1085555544. Its totient is φ = 180925920.

The previous prime is 542777701. The next prime is 542777771. The reversal of 542777766 is 667777245.

It is a happy number.

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

542777766 is an admirable 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, 45231475 + ... + 45231486.

It is an arithmetic number, because the mean of its divisors is an integer number (135694443).

Almost surely, 2^542777766 is an apocalyptic number.

542777766 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

542777766 is a wasteful number, since it uses less digits than its factorization.

542777766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90462966.

The product of its digits is 3457440, while the sum is 51.

The square root of 542777766 is about 23297.5914205739. The cubic root of 542777766 is about 815.7191970419.

The spelling of 542777766 in words is "five hundred forty-two million, seven hundred seventy-seven thousand, seven hundred sixty-six".