79992808873 has 2 divisors, whose sum is σ = 79992808874. Its totient is φ = 79992808872.

The previous prime is 79992808867. The next prime is 79992808943. The reversal of 79992808873 is 37880829997.

It is an a-pointer prime, because the next prime (79992808943) can be obtained adding 79992808873 to its sum of digits (70).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64317017664 + 15675791209 = 253608^2 + 125203^2 .

It is an emirp because it is prime and its reverse (37880829997) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79992808873 - 2⁹ = 79992808361 is a prime.

It is not a weakly prime, because it can be changed into another prime (79992808843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39996404436 + 39996404437.

It is an arithmetic number, because the mean of its divisors is an integer number (39996404437).

Almost surely, 2^79992808873 is an apocalyptic number.

It is an amenable number.

79992808873 is a deficient number, since it is larger than the sum of its proper divisors (1).

79992808873 is an equidigital number, since it uses as much as digits as its factorization.

79992808873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 109734912, while the sum is 70.

The spelling of 79992808873 in words is "seventy-nine billion, nine hundred ninety-two million, eight hundred eight thousand, eight hundred seventy-three".