2118278162 has 64 divisors (see below), whose sum is σ = 4274581248. Its totient is φ = 760320000.

The previous prime is 2118278147. The next prime is 2118278171. The reversal of 2118278162 is 2618728112.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1763162 + ... + 1764362.

It is an arithmetic number, because the mean of its divisors is an integer number (66790332).

Almost surely, 2^2118278162 is an apocalyptic number.

2118278162 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2118278162 is an abundant number, since it is smaller than the sum of its proper divisors (2156303086).

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

2118278162 is a wasteful number, since it uses less digits than its factorization.

2118278162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2115.

The product of its digits is 21504, while the sum is 38.

The square root of 2118278162 is about 46024.7559689348. The cubic root of 2118278162 is about 1284.2837761546.

The spelling of 2118278162 in words is "two billion, one hundred eighteen million, two hundred seventy-eight thousand, one hundred sixty-two".