79912003243 has 4 divisors (see below), whose sum is σ = 80254973448. Its totient is φ = 79569033040.

The previous prime is 79912003219. The next prime is 79912003333. The reversal of 79912003243 is 34230021997.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79912003243 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79912003196 and 79912003205.

It is not an unprimeable number, because it can be changed into a prime (79912003943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171484753 + ... + 171485218.

It is an arithmetic number, because the mean of its divisors is an integer number (20063743362).

Almost surely, 2^79912003243 is an apocalyptic number.

79912003243 is a deficient number, since it is larger than the sum of its proper divisors (342970205).

79912003243 is a wasteful number, since it uses less digits than its factorization.

79912003243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342970204.

The product of its (nonzero) digits is 81648, while the sum is 40.

The spelling of 79912003243 in words is "seventy-nine billion, nine hundred twelve million, three thousand, two hundred forty-three".