1986463675 has 36 divisors (see below), whose sum is σ = 2873990160. Its totient is φ = 1358051520.

The previous prime is 1986463649. The next prime is 1986463681. The reversal of 1986463675 is 5763646891.

It is not a de Polignac number, because 1986463675 - 2¹⁷ = 1986332603 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 437517 + ... + 442033.

It is an arithmetic number, because the mean of its divisors is an integer number (79833060).

Almost surely, 2^1986463675 is an apocalyptic number.

1986463675 is a deficient number, since it is larger than the sum of its proper divisors (887526485).

1986463675 is a wasteful number, since it uses less digits than its factorization.

1986463675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4900 (or 4888 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 55.

The square root of 1986463675 is about 44569.7618907707. The cubic root of 1986463675 is about 1257.0721628174.

The spelling of 1986463675 in words is "one billion, nine hundred eighty-six million, four hundred sixty-three thousand, six hundred seventy-five".