79805768351 has 2 divisors, whose sum is σ = 79805768352. Its totient is φ = 79805768350.

The previous prime is 79805768297. The next prime is 79805768369. The reversal of 79805768351 is 15386750897.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79805768351 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79805768551) by changing a digit.

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 as a sum of consecutive naturals, namely, 39902884175 + 39902884176.

It is an arithmetic number, because the mean of its divisors is an integer number (39902884176).

Almost surely, 2^79805768351 is an apocalyptic number.

79805768351 is a deficient number, since it is larger than the sum of its proper divisors (1).

79805768351 is an equidigital number, since it uses as much as digits as its factorization.

79805768351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12700800, while the sum is 59.

The spelling of 79805768351 in words is "seventy-nine billion, eight hundred five million, seven hundred sixty-eight thousand, three hundred fifty-one".