536756778 has 12 divisors (see below), whose sum is σ = 1162973058. Its totient is φ = 178918920.

The previous prime is 536756771. The next prime is 536756797. The reversal of 536756778 is 877657635.

536756778 is a `hidden beast` number, since 5 + 3 + 6 + 7 + 567 + 78 = 666.

It can be written as a sum of positive squares in only one way, i.e., 522716769 + 14040009 = 22863^2 + 3747^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (536756771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14909893 + ... + 14909928.

Almost surely, 2^536756778 is an apocalyptic number.

536756778 is an abundant number, since it is smaller than the sum of its proper divisors (626216280).

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

536756778 is a wasteful number, since it uses less digits than its factorization.

536756778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29819829 (or 29819826 counting only the distinct ones).

The product of its digits is 7408800, while the sum is 54.

The square root of 536756778 is about 23168.0119561433. The cubic root of 536756778 is about 812.6917400893.

The spelling of 536756778 in words is "five hundred thirty-six million, seven hundred fifty-six thousand, seven hundred seventy-eight".