2118619008 has 144 divisors (see below), whose sum is σ = 6701604000. Its totient is φ = 641963520.

The previous prime is 2118619007. The next prime is 2118619021. The reversal of 2118619008 is 8009168112.

2118619008 is a `hidden beast` number, since 21 + 18 + 619 + 0 + 0 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2118619007) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 131793 + ... + 146991.

Almost surely, 2^2118619008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2118619008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3350802000).

2118619008 is an abundant number, since it is smaller than the sum of its proper divisors (4582984992).

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

2118619008 is a wasteful number, since it uses less digits than its factorization.

2118619008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15241 (or 15215 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 36.

The square root of 2118619008 is about 46028.4586750415. The cubic root of 2118619008 is about 1284.3526559204.

It can be divided in two parts, 2118 and 619008, that added together give a palindrome (621126).

The spelling of 2118619008 in words is "two billion, one hundred eighteen million, six hundred nineteen thousand, eight".