2061898188 has 24 divisors (see below), whose sum is σ = 5498395392. Its totient is φ = 589113744.

The previous prime is 2061898177. The next prime is 2061898199. The reversal of 2061898188 is 8818981602.

It is a happy number.

2061898188 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2061898177) and next prime (2061898199).

It is a self number, because there is not a number n which added to its sum of digits gives 2061898188.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12273120 + ... + 12273287.

It is an arithmetic number, because the mean of its divisors is an integer number (229099808).

Almost surely, 2^2061898188 is an apocalyptic number.

2061898188 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2061898188 is an abundant number, since it is smaller than the sum of its proper divisors (3436497204).

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

2061898188 is a wasteful number, since it uses less digits than its factorization.

2061898188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24546421 (or 24546419 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 51.

The square root of 2061898188 is about 45408.1290960110. The cubic root of 2061898188 is about 1272.7870238225.

The spelling of 2061898188 in words is "two billion, sixty-one million, eight hundred ninety-eight thousand, one hundred eighty-eight".