768784487867 has 16 divisors (see below), whose sum is σ = 841500338400. Its totient is φ = 696541824000.

The previous prime is 768784487857. The next prime is 768784487881.

It is a happy number.

768784487867 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 768784487867 - 2⁶ = 768784487803 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 768784487791 and 768784487800.

It is not an unprimeable number, because it can be changed into a prime (768784487857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7329509 + ... + 7433657.

It is an arithmetic number, because the mean of its divisors is an integer number (52593771150).

Almost surely, 2^768784487867 is an apocalyptic number.

768784487867 is a deficient number, since it is larger than the sum of its proper divisors (72715850533).

768784487867 is a wasteful number, since it uses less digits than its factorization.

768784487867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106414.

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

The spelling of 768784487867 in words is "seven hundred sixty-eight billion, seven hundred eighty-four million, four hundred eighty-seven thousand, eight hundred sixty-seven".