79390442603 has 4 divisors (see below), whose sum is σ = 79996476648. Its totient is φ = 78784408560.

The previous prime is 79390442597. The next prime is 79390442611. The reversal of 79390442603 is 30624409397.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30624409397 = 20173 ⋅1518089.

It is a cyclic number.

It is not a de Polignac number, because 79390442603 - 2¹² = 79390438507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79390442203) 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, 303016826 + ... + 303017087.

It is an arithmetic number, because the mean of its divisors is an integer number (19999119162).

Almost surely, 2^79390442603 is an apocalyptic number.

79390442603 is a deficient number, since it is larger than the sum of its proper divisors (606034045).

79390442603 is a wasteful number, since it uses less digits than its factorization.

79390442603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606034044.

The product of its (nonzero) digits is 979776, while the sum is 47.

The spelling of 79390442603 in words is "seventy-nine billion, three hundred ninety million, four hundred forty-two thousand, six hundred three".