2185189004068 has 24 divisors (see below), whose sum is σ = 4370428992384. Its totient is φ = 936498648000.

The previous prime is 2185189004059. The next prime is 2185189004069. The reversal of 2185189004068 is 8604009815812.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2185189004069) 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, 2275113 + ... + 3089743.

It is an arithmetic number, because the mean of its divisors is an integer number (182101208016).

Almost surely, 2^{2185189004068} is an apocalyptic number.

2185189004068 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2185189004068 is an abundant number, since it is smaller than the sum of its proper divisors (2185239988316).

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

2185189004068 is a wasteful number, since it uses less digits than its factorization.

2185189004068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910443 (or 910441 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 52.

The spelling of 2185189004068 in words is "two trillion, one hundred eighty-five billion, one hundred eighty-nine million, four thousand, sixty-eight".