79135352513 has 4 divisors (see below), whose sum is σ = 90440402880. Its totient is φ = 67830302148.

The previous prime is 79135352497. The next prime is 79135352551. The reversal of 79135352513 is 31525353197.

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 not a de Polignac number, because 79135352513 - 2⁴ = 79135352497 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (79135352573) 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, 5652525173 + ... + 5652525186.

It is an arithmetic number, because the mean of its divisors is an integer number (22610100720).

Almost surely, 2^79135352513 is an apocalyptic number.

It is an amenable number.

79135352513 is a deficient number, since it is larger than the sum of its proper divisors (11305050367).

79135352513 is a wasteful number, since it uses less digits than its factorization.

79135352513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11305050366.

The product of its digits is 425250, while the sum is 44.

The spelling of 79135352513 in words is "seventy-nine billion, one hundred thirty-five million, three hundred fifty-two thousand, five hundred thirteen".