768044161 has 4 divisors (see below), whose sum is σ = 768254400. Its totient is φ = 767833924.

The previous prime is 768044159. The next prime is 768044177. The reversal of 768044161 is 161440867.

It is a happy number.

768044161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 161440867 = 7 ⋅23062981.

It is a cyclic number.

It is not a de Polignac number, because 768044161 - 2¹ = 768044159 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 768044161.

It is not an unprimeable number, because it can be changed into a prime (768044111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99541 + ... + 106978.

It is an arithmetic number, because the mean of its divisors is an integer number (192063600).

Almost surely, 2^768044161 is an apocalyptic number.

It is an amenable number.

768044161 is a deficient number, since it is larger than the sum of its proper divisors (210239).

768044161 is a wasteful number, since it uses less digits than its factorization.

768044161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210238.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 768044161 is about 27713.6096710623. The cubic root of 768044161 is about 915.7889463888.

The spelling of 768044161 in words is "seven hundred sixty-eight million, forty-four thousand, one hundred sixty-one".