79558685597 has 4 divisors (see below), whose sum is σ = 79787961696. Its totient is φ = 79329409500.

The previous prime is 79558685593. The next prime is 79558685599.

79558685597 is nontrivially palindromic in base 10.

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.

It is a cyclic number.

It is not a de Polignac number, because 79558685597 - 2² = 79558685593 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 (79558685593) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114637529 + ... + 114638222.

It is an arithmetic number, because the mean of its divisors is an integer number (19946990424).

Almost surely, 2^79558685597 is an apocalyptic number.

It is an amenable number.

79558685597 is a deficient number, since it is larger than the sum of its proper divisors (229276099).

79558685597 is a wasteful number, since it uses less digits than its factorization.

79558685597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229276098.

The product of its digits is 952560000, while the sum is 74.

The spelling of 79558685597 in words is "seventy-nine billion, five hundred fifty-eight million, six hundred eighty-five thousand, five hundred ninety-seven".