1768134487 has 16 divisors (see below), whose sum is σ = 2141061120. Its totient is φ = 1425414528.

The previous prime is 1768134469. The next prime is 1768134493. The reversal of 1768134487 is 7844318671.

It is a cyclic number.

It is not a de Polignac number, because 1768134487 - 2¹¹ = 1768132439 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1768134487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1768134427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 205098 + ... + 213544.

It is an arithmetic number, because the mean of its divisors is an integer number (133816320).

Almost surely, 2^1768134487 is an apocalyptic number.

1768134487 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1768134487 is a deficient number, since it is larger than the sum of its proper divisors (372926633).

1768134487 is a wasteful number, since it uses less digits than its factorization.

1768134487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10230.

The product of its digits is 903168, while the sum is 49.

The square root of 1768134487 is about 42049.1912764086. The cubic root of 1768134487 is about 1209.2193783353.

The spelling of 1768134487 in words is "one billion, seven hundred sixty-eight million, one hundred thirty-four thousand, four hundred eighty-seven".