768481665619 has 16 divisors (see below), whose sum is σ = 812785284864. Its totient is φ = 725405068800.

The previous prime is 768481665577. The next prime is 768481665629. The reversal of 768481665619 is 916566184867.

768481665619 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 768481665619 - 2¹⁹ = 768481141331 is a prime.

It is a super-2 number, since 2×768481665619² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (768481665629) 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, 6439497 + ... + 6557749.

It is an arithmetic number, because the mean of its divisors is an integer number (50799080304).

Almost surely, 2^768481665619 is an apocalyptic number.

768481665619 is a deficient number, since it is larger than the sum of its proper divisors (44303619245).

768481665619 is a wasteful number, since it uses less digits than its factorization.

768481665619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123438.

The product of its digits is 104509440, while the sum is 67.

The spelling of 768481665619 in words is "seven hundred sixty-eight billion, four hundred eighty-one million, six hundred sixty-five thousand, six hundred nineteen".