79315206866 has 16 divisors (see below), whose sum is σ = 137607107904. Its totient is φ = 33582686064.

The previous prime is 79315206863. The next prime is 79315206877. The reversal of 79315206866 is 66860251397.

It is not an unprimeable number, because it can be changed into a prime (79315206863) 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 7 ways as a sum of consecutive naturals, for example, 34127585 + ... + 34129908.

It is an arithmetic number, because the mean of its divisors is an integer number (8600444244).

Almost surely, 2^79315206866 is an apocalyptic number.

79315206866 is a deficient number, since it is larger than the sum of its proper divisors (58291901038).

79315206866 is a wasteful number, since it uses less digits than its factorization.

79315206866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68257585.

The product of its (nonzero) digits is 3265920, while the sum is 53.

The spelling of 79315206866 in words is "seventy-nine billion, three hundred fifteen million, two hundred six thousand, eight hundred sixty-six".