2108156418 has 48 divisors (see below), whose sum is σ = 4599504000. Its totient is φ = 697842240.

The previous prime is 2108156371. The next prime is 2108156423. The reversal of 2108156418 is 8146518012.

2108156418 is a `hidden beast` number, since 2 + 1 + 0 + 8 + 1 + 5 + 641 + 8 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2009158 + ... + 2010206.

It is an arithmetic number, because the mean of its divisors is an integer number (95823000).

Almost surely, 2^2108156418 is an apocalyptic number.

2108156418 is an abundant number, since it is smaller than the sum of its proper divisors (2491347582).

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

2108156418 is a wasteful number, since it uses less digits than its factorization.

2108156418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1727 (or 1724 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 36.

The square root of 2108156418 is about 45914.6645201726. The cubic root of 2108156418 is about 1282.2349499576.

The spelling of 2108156418 in words is "two billion, one hundred eight million, one hundred fifty-six thousand, four hundred eighteen".