79144244197 has 2 divisors, whose sum is σ = 79144244198. Its totient is φ = 79144244196.

The previous prime is 79144244191. The next prime is 79144244237.

79144244197 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., 78885709956 + 258534241 = 280866^2 + 16079^2 .

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 79144244197 - 2³ = 79144244189 is a prime.

It is a super-2 number, since 2×79144244197² (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 (79144244191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39572122098 + 39572122099.

It is an arithmetic number, because the mean of its divisors is an integer number (39572122099).

Almost surely, 2^79144244197 is an apocalyptic number.

It is an amenable number.

79144244197 is a deficient number, since it is larger than the sum of its proper divisors (1).

79144244197 is an equidigital number, since it uses as much as digits as its factorization.

79144244197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2032128, while the sum is 52.

The spelling of 79144244197 in words is "seventy-nine billion, one hundred forty-four million, two hundred forty-four thousand, one hundred ninety-seven".