800079429442 has 4 divisors (see below), whose sum is σ = 1200119144166. Its totient is φ = 400039714720.

The previous prime is 800079429421. The next prime is 800079429449. The reversal of 800079429442 is 244924970008.

It is a happy number.

800079429442 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.

It can be written as a sum of positive squares in only one way, i.e., 660382144321 + 139697285121 = 812639^2 + 373761^2 .

It is not an unprimeable number, because it can be changed into a prime (800079429449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200019857359 + ... + 200019857362.

Almost surely, 2^800079429442 is an apocalyptic number.

800079429442 is a deficient number, since it is larger than the sum of its proper divisors (400039714724).

800079429442 is a wasteful number, since it uses less digits than its factorization.

800079429442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400039714723.

The product of its (nonzero) digits is 1161216, while the sum is 49.

The spelling of 800079429442 in words is "eight hundred billion, seventy-nine million, four hundred twenty-nine thousand, four hundred forty-two".