768487784867 has 4 divisors (see below), whose sum is σ = 838350310776. Its totient is φ = 698625258960.

The previous prime is 768487784837. The next prime is 768487784873.

It is a happy number.

768487784867 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 768487784867 - 2⁶ = 768487784803 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 768487784791 and 768487784800.

It is not an unprimeable number, because it can be changed into a prime (768487784837) 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 3 ways as a sum of consecutive naturals, for example, 34931262938 + ... + 34931262959.

It is an arithmetic number, because the mean of its divisors is an integer number (209587577694).

Almost surely, 2^768487784867 is an apocalyptic number.

768487784867 is a deficient number, since it is larger than the sum of its proper divisors (69862525909).

768487784867 is a wasteful number, since it uses less digits than its factorization.

768487784867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69862525908.

The product of its digits is 5664669696, while the sum is 80.

The spelling of 768487784867 in words is "seven hundred sixty-eight billion, four hundred eighty-seven million, seven hundred eighty-four thousand, eight hundred sixty-seven".