1986768675 has 24 divisors (see below), whose sum is σ = 3649768880. Its totient is φ = 1059609600.

The previous prime is 1986768673. The next prime is 1986768683. The reversal of 1986768675 is 5768676891.

It is not a de Polignac number, because 1986768675 - 2¹ = 1986768673 is a prime.

It is a super-2 number, since 2×1986768675² = 7894499535922511250, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1986768671) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1471006 + ... + 1472355.

Almost surely, 2^1986768675 is an apocalyptic number.

1986768675 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1986768675 is a deficient number, since it is larger than the sum of its proper divisors (1663000205).

1986768675 is a wasteful number, since it uses less digits than its factorization.

1986768675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2943380 (or 2943369 counting only the distinct ones).

The product of its digits is 30481920, while the sum is 63.

The square root of 1986768675 is about 44573.1833617479. The cubic root of 1986768675 is about 1257.1364961338.

It can be divided in two parts, 1986 and 768675, that added together give a triangular number (770661 = T₁₂₄₁).

The spelling of 1986768675 in words is "one billion, nine hundred eighty-six million, seven hundred sixty-eight thousand, six hundred seventy-five".