79197749337601 has 2 divisors, whose sum is σ = 79197749337602. Its totient is φ = 79197749337600.

The previous prime is 79197749337583. The next prime is 79197749337607. The reversal of 79197749337601 is 10673394779197.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45444438080001 + 33753311257600 = 6741249^2 + 5809760^2 .

It is a cyclic number.

It is not a de Polignac number, because 79197749337601 - 2⁹ = 79197749337089 is a prime.

It is not a weakly prime, because it can be changed into another prime (79197749337607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39598874668800 + 39598874668801.

It is an arithmetic number, because the mean of its divisors is an integer number (39598874668801).

Almost surely, 2^{79197749337601} is an apocalyptic number.

It is an amenable number.

79197749337601 is a deficient number, since it is larger than the sum of its proper divisors (1).

79197749337601 is an equidigital number, since it uses as much as digits as its factorization.

79197749337601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378071064, while the sum is 73.

The spelling of 79197749337601 in words is "seventy-nine trillion, one hundred ninety-seven billion, seven hundred forty-nine million, three hundred thirty-seven thousand, six hundred one".