79365728643 has 16 divisors (see below), whose sum is σ = 106892755200. Its totient is φ = 52377294816.

The previous prime is 79365728633. The next prime is 79365728671. The reversal of 79365728643 is 34682756397.

It is not a de Polignac number, because 79365728643 - 2¹⁶ = 79365663107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79365728633) 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, 219805 + ... + 455022.

It is an arithmetic number, because the mean of its divisors is an integer number (6680797200).

Almost surely, 2^79365728643 is an apocalyptic number.

79365728643 is a deficient number, since it is larger than the sum of its proper divisors (27527026557).

79365728643 is a wasteful number, since it uses less digits than its factorization.

79365728643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675226.

The product of its digits is 45722880, while the sum is 60.

The spelling of 79365728643 in words is "seventy-nine billion, three hundred sixty-five million, seven hundred twenty-eight thousand, six hundred forty-three".