79201968097 has 4 divisors (see below), whose sum is σ = 90516534976. Its totient is φ = 67887401220.

The previous prime is 79201968089. The next prime is 79201968143. The reversal of 79201968097 is 79086910297.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 79086910297 = 19 ⋅4162468963.

It is a cyclic number.

It is not a de Polignac number, because 79201968097 - 2³ = 79201968089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79201968007) 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 in 3 ways as a sum of consecutive naturals, for example, 5657283429 + ... + 5657283442.

It is an arithmetic number, because the mean of its divisors is an integer number (22629133744).

Almost surely, 2^79201968097 is an apocalyptic number.

It is an amenable number.

79201968097 is a deficient number, since it is larger than the sum of its proper divisors (11314566879).

79201968097 is a wasteful number, since it uses less digits than its factorization.

79201968097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11314566878.

The product of its (nonzero) digits is 3429216, while the sum is 58.

The spelling of 79201968097 in words is "seventy-nine billion, two hundred one million, nine hundred sixty-eight thousand, ninety-seven".