79921949233 has 16 divisors (see below), whose sum is σ = 92482145280. Its totient is φ = 67648203216.

The previous prime is 79921949221. The next prime is 79921949243. The reversal of 79921949233 is 33294912997.

It is a cyclic number.

It is not a de Polignac number, because 79921949233 - 2⁹ = 79921948721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79921949213) 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 15 ways as a sum of consecutive naturals, for example, 1286788 + ... + 1347466.

It is an arithmetic number, because the mean of its divisors is an integer number (5780134080).

Almost surely, 2^79921949233 is an apocalyptic number.

It is an amenable number.

79921949233 is a deficient number, since it is larger than the sum of its proper divisors (12560196047).

79921949233 is a wasteful number, since it uses less digits than its factorization.

79921949233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63036.

The product of its digits is 6613488, while the sum is 58.

The spelling of 79921949233 in words is "seventy-nine billion, nine hundred twenty-one million, nine hundred forty-nine thousand, two hundred thirty-three".