2186706312370 has 16 divisors (see below), whose sum is σ = 3936276914328. Its totient is φ = 874636846720.

The previous prime is 2186706312317. The next prime is 2186706312389. The reversal of 2186706312370 is 732136076812.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2182506883561 + 4199428809 = 1477331^2 + 64803^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2186706312370.

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, 5508379 + ... + 5891998.

Almost surely, 2^{2186706312370} is an apocalyptic number.

2186706312370 is a deficient number, since it is larger than the sum of its proper divisors (1749570601958).

2186706312370 is a wasteful number, since it uses less digits than its factorization.

2186706312370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11419565.

The product of its (nonzero) digits is 508032, while the sum is 46.

The spelling of 2186706312370 in words is "two trillion, one hundred eighty-six billion, seven hundred six million, three hundred twelve thousand, three hundred seventy".