79758885797 has 2 divisors, whose sum is σ = 79758885798. Its totient is φ = 79758885796.

The previous prime is 79758885793. The next prime is 79758885823.

79758885797 is nontrivially palindromic in base 10.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46722551716 + 33036334081 = 216154^2 + 181759^2 .

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 79758885797 - 2² = 79758885793 is a prime.

It is a super-2 number, since 2×79758885797² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79758885793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39879442898 + 39879442899.

It is an arithmetic number, because the mean of its divisors is an integer number (39879442899).

Almost surely, 2^79758885797 is an apocalyptic number.

It is an amenable number.

79758885797 is a deficient number, since it is larger than the sum of its proper divisors (1).

79758885797 is an equidigital number, since it uses as much as digits as its factorization.

79758885797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2489356800, while the sum is 80.

The spelling of 79758885797 in words is "seventy-nine billion, seven hundred fifty-eight million, eight hundred eighty-five thousand, seven hundred ninety-seven".