4278028106331 has 24 divisors (see below), whose sum is σ = 7072635229920. Its totient is φ = 2440955091456.

The previous prime is 4278028106273. The next prime is 4278028106333. The reversal of 4278028106331 is 1336018208724.

4278028106331 is a `hidden beast` number, since 4 + 2 + 7 + 8 + 0 + 2 + 8 + 1 + 0 + 633 + 1 = 666.

4278028106331 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4278028106331 - 2²² = 4278023912027 is a prime.

It is a super-2 number, since 2×4278028106331² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4278028106333) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50407236 + ... + 50492033.

It is an arithmetic number, because the mean of its divisors is an integer number (294693134580).

Almost surely, 2^{4278028106331} is an apocalyptic number.

4278028106331 is a deficient number, since it is larger than the sum of its proper divisors (2794607123589).

4278028106331 is a wasteful number, since it uses less digits than its factorization.

4278028106331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100899955 (or 100899952 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 4278028106331 in words is "four trillion, two hundred seventy-eight billion, twenty-eight million, one hundred six thousand, three hundred thirty-one".