4278028106551 has 16 divisors (see below), whose sum is σ = 4518030664800. Its totient is φ = 4039513486848.

The previous prime is 4278028106543. The next prime is 4278028106563. The reversal of 4278028106551 is 1556018208724.

It is not a de Polignac number, because 4278028106551 - 2³ = 4278028106543 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4278028106495 and 4278028106504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4278028706551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46168195 + ... + 46260763.

It is an arithmetic number, because the mean of its divisors is an integer number (282376916550).

Almost surely, 2^{4278028106551} is an apocalyptic number.

4278028106551 is a deficient number, since it is larger than the sum of its proper divisors (240002558249).

4278028106551 is a wasteful number, since it uses less digits than its factorization.

4278028106551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100578.

The product of its (nonzero) digits is 1075200, while the sum is 49.

The spelling of 4278028106551 in words is "four trillion, two hundred seventy-eight billion, twenty-eight million, one hundred six thousand, five hundred fifty-one".