79806065085782 has 16 divisors (see below), whose sum is σ = 136997041778592. Its totient is φ = 34155938200320.

The previous prime is 79806065085757. The next prime is 79806065085793. The reversal of 79806065085782 is 28758056060897.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3888416219 + ... + 3888436742.

It is an arithmetic number, because the mean of its divisors is an integer number (8562315111162).

Almost surely, 2^{79806065085782} is an apocalyptic number.

79806065085782 is a deficient number, since it is larger than the sum of its proper divisors (57190976692810).

79806065085782 is a wasteful number, since it uses less digits than its factorization.

79806065085782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7776853703.

The product of its (nonzero) digits is 406425600, while the sum is 71.

The spelling of 79806065085782 in words is "seventy-nine trillion, eight hundred six billion, sixty-five million, eighty-five thousand, seven hundred eighty-two".