2185018683388 has 12 divisors (see below), whose sum is σ = 3823813375200. Its totient is φ = 1092500576192.

The previous prime is 2185018683371. The next prime is 2185018683391. The reversal of 2185018683388 is 8833868105812.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1613581 + ... + 2640772.

It is an arithmetic number, because the mean of its divisors is an integer number (318651114600).

Almost surely, 2^{2185018683388} is an apocalyptic number.

It is an amenable number.

2185018683388 is a deficient number, since it is larger than the sum of its proper divisors (1638794691812).

2185018683388 is a wasteful number, since it uses less digits than its factorization.

2185018683388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4382756 (or 4382754 counting only the distinct ones).

The product of its (nonzero) digits is 17694720, while the sum is 61.

The spelling of 2185018683388 in words is "two trillion, one hundred eighty-five billion, eighteen million, six hundred eighty-three thousand, three hundred eighty-eight".