1986130816611 has 8 divisors (see below), whose sum is σ = 2648216276160. Its totient is φ = 1324066284072.

The previous prime is 1986130816597. The next prime is 1986130816639. The reversal of 1986130816611 is 1166180316891.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1986130816611 - 2¹⁸ = 1986130554467 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1986130816661) 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, 5008945 + ... + 5390898.

It is an arithmetic number, because the mean of its divisors is an integer number (331027034520).

Almost surely, 2^{1986130816611} is an apocalyptic number.

1986130816611 is a deficient number, since it is larger than the sum of its proper divisors (662085459549).

1986130816611 is a wasteful number, since it uses less digits than its factorization.

1986130816611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10463505.

The product of its (nonzero) digits is 373248, while the sum is 51.

The spelling of 1986130816611 in words is "one trillion, nine hundred eighty-six billion, one hundred thirty million, eight hundred sixteen thousand, six hundred eleven".