118278856828 has 24 divisors (see below), whose sum is σ = 225819304704. Its totient is φ = 53759732400.

The previous prime is 118278856823. The next prime is 118278856879. The reversal of 118278856828 is 828658872811.

It is a happy number.

118278856828 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 118278856828.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118278856823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 705133 + ... + 856603.

It is an arithmetic number, because the mean of its divisors is an integer number (9409137696).

Almost surely, 2^118278856828 is an apocalyptic number.

It is an amenable number.

118278856828 is a deficient number, since it is larger than the sum of its proper divisors (107540447876).

118278856828 is a wasteful number, since it uses less digits than its factorization.

118278856828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169233 (or 169231 counting only the distinct ones).

The product of its digits is 27525120, while the sum is 64.

It can be divided in two parts, 118278 and 856828, that added together give a triangular number (975106 = T₁₃₉₆).

The spelling of 118278856828 in words is "one hundred eighteen billion, two hundred seventy-eight million, eight hundred fifty-six thousand, eight hundred twenty-eight".