4278542758020 has 36 divisors (see below), whose sum is σ = 12978246366540. Its totient is φ = 1140944735424.

The previous prime is 4278542758001. The next prime is 4278542758067. The reversal of 4278542758020 is 208572458724.

It is a happy number.

4278542758020 is a `hidden beast` number, since 4 + 2 + 7 + 8 + 54 + 2 + 7 + 580 + 2 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 847986823044 + 3430555934976 = 920862^2 + 1852176^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 11884840815 + ... + 11884841174.

It is an arithmetic number, because the mean of its divisors is an integer number (360506843515).

Almost surely, 2^{4278542758020} is an apocalyptic number.

It is an amenable number.

4278542758020 is an abundant number, since it is smaller than the sum of its proper divisors (8699703608520).

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

4278542758020 is a wasteful number, since it uses less digits than its factorization.

4278542758020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23769682004 (or 23769681999 counting only the distinct ones).

The product of its (nonzero) digits is 10035200, while the sum is 54.

The spelling of 4278542758020 in words is "four trillion, two hundred seventy-eight billion, five hundred forty-two million, seven hundred fifty-eight thousand, twenty".