1868487982 has 8 divisors (see below), whose sum is σ = 2804096736. Its totient is φ = 933789072.

The previous prime is 1868487967. The next prime is 1868487991. The reversal of 1868487982 is 2897848681.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1868487982.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222303 + ... + 230554.

It is an arithmetic number, because the mean of its divisors is an integer number (350512092).

Almost surely, 2^1868487982 is an apocalyptic number.

1868487982 is a deficient number, since it is larger than the sum of its proper divisors (935608754).

1868487982 is a wasteful number, since it uses less digits than its factorization.

1868487982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454922.

The product of its digits is 12386304, while the sum is 61.

The square root of 1868487982 is about 43226.0104798026. The cubic root of 1868487982 is about 1231.6768241935.

The spelling of 1868487982 in words is "one billion, eight hundred sixty-eight million, four hundred eighty-seven thousand, nine hundred eighty-two".