79107670813 has 4 divisors (see below), whose sum is σ = 79108829020. Its totient is φ = 79106512608.

The previous prime is 79107670801. The next prime is 79107670841. The reversal of 79107670813 is 31807670197.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31807670197 = 167 ⋅190465091.

It can be written as a sum of positive squares in 2 ways, for example, as 68213947684 + 10893723129 = 261178^2 + 104373^2 .

It is a cyclic number.

It is not a de Polignac number, because 79107670813 - 2¹⁷ = 79107539741 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 (79107650813) 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, 469770 + ... + 615547.

It is an arithmetic number, because the mean of its divisors is an integer number (19777207255).

Almost surely, 2^79107670813 is an apocalyptic number.

It is an amenable number.

79107670813 is a deficient number, since it is larger than the sum of its proper divisors (1158207).

79107670813 is a wasteful number, since it uses less digits than its factorization.

79107670813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1158206.

The product of its (nonzero) digits is 444528, while the sum is 49.

The spelling of 79107670813 in words is "seventy-nine billion, one hundred seven million, six hundred seventy thousand, eight hundred thirteen".