1986647386914 has 12 divisors (see below), whose sum is σ = 4304402671686. Its totient is φ = 662215795632.

The previous prime is 1986647386907. The next prime is 1986647386937. The reversal of 1986647386914 is 4196837466891.

It is a happy number.

1986647386914 is a `hidden beast` number, since 1 + 9 + 8 + 66 + 473 + 8 + 6 + 91 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1985858732025 + 788654889 = 1409205^2 + 28083^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55184649619 + ... + 55184649654.

Almost surely, 2^{1986647386914} is an apocalyptic number.

1986647386914 is an abundant number, since it is smaller than the sum of its proper divisors (2317755284772).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1986647386914 is a wasteful number, since it uses less digits than its factorization.

1986647386914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110369299281 (or 110369299278 counting only the distinct ones).

The product of its digits is 376233984, while the sum is 72.

The spelling of 1986647386914 in words is "one trillion, nine hundred eighty-six billion, six hundred forty-seven million, three hundred eighty-six thousand, nine hundred fourteen".