79539685211 has 4 divisors (see below), whose sum is σ = 90902497392. Its totient is φ = 68176873032.

The previous prime is 79539685201. The next prime is 79539685213. The reversal of 79539685211 is 11258693597.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 79539685211 - 2¹⁴ = 79539668827 is a prime.

It is a super-2 number, since 2×79539685211² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (79539685213) 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, 5681406080 + ... + 5681406093.

It is an arithmetic number, because the mean of its divisors is an integer number (22725624348).

Almost surely, 2^79539685211 is an apocalyptic number.

79539685211 is a deficient number, since it is larger than the sum of its proper divisors (11362812181).

79539685211 is a wasteful number, since it uses less digits than its factorization.

79539685211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11362812180.

The product of its digits is 4082400, while the sum is 56.

The spelling of 79539685211 in words is "seventy-nine billion, five hundred thirty-nine million, six hundred eighty-five thousand, two hundred eleven".