79364046397 has 4 divisors (see below), whose sum is σ = 79364904796. Its totient is φ = 79363188000.

The previous prime is 79364046367. The next prime is 79364046407.

79364046397 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 29176397721 + 50187648676 = 170811^2 + 224026^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79364046397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79364046317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 271104 + ... + 481897.

It is an arithmetic number, because the mean of its divisors is an integer number (19841226199).

Almost surely, 2^79364046397 is an apocalyptic number.

It is an amenable number.

79364046397 is a deficient number, since it is larger than the sum of its proper divisors (858399).

79364046397 is a wasteful number, since it uses less digits than its factorization.

79364046397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858398.

The product of its (nonzero) digits is 20575296, while the sum is 58.

The spelling of 79364046397 in words is "seventy-nine billion, three hundred sixty-four million, forty-six thousand, three hundred ninety-seven".