2186831609038 has 16 divisors (see below), whose sum is σ = 3360313316304. Its totient is φ = 1066728120640.

The previous prime is 2186831609003. The next prime is 2186831609089. The reversal of 2186831609038 is 8309061386812.

It is a self number, because there is not a number n which added to its sum of digits gives 2186831609038.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5127156 + ... + 5537272.

It is an arithmetic number, because the mean of its divisors is an integer number (210019582269).

Almost surely, 2^{2186831609038} is an apocalyptic number.

2186831609038 is a deficient number, since it is larger than the sum of its proper divisors (1173481707266).

2186831609038 is a wasteful number, since it uses less digits than its factorization.

2186831609038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475187.

The product of its (nonzero) digits is 2985984, while the sum is 55.

The spelling of 2186831609038 in words is "two trillion, one hundred eighty-six billion, eight hundred thirty-one million, six hundred nine thousand, thirty-eight".