2186129804 has 12 divisors (see below), whose sum is σ = 3914697864. Its totient is φ = 1067644704.

The previous prime is 2186129789. The next prime is 2186129839. The reversal of 2186129804 is 4089216812.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6354857 + ... + 6355200.

It is an arithmetic number, because the mean of its divisors is an integer number (326224822).

Almost surely, 2^2186129804 is an apocalyptic number.

It is an amenable number.

2186129804 is a deficient number, since it is larger than the sum of its proper divisors (1728568060).

2186129804 is a wasteful number, since it uses less digits than its factorization.

2186129804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12710104 (or 12710102 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 2186129804 is about 46756.0670287825. The cubic root of 2186129804 is about 1297.8524313423.

The spelling of 2186129804 in words is "two billion, one hundred eighty-six million, one hundred twenty-nine thousand, eight hundred four".