79852139135 has 16 divisors (see below), whose sum is σ = 106799148000. Its totient is φ = 56959543296.

The previous prime is 79852139123. The next prime is 79852139141. The reversal of 79852139135 is 53193125897.

It is a cyclic number.

It is not a de Polignac number, because 79852139135 - 2²⁰ = 79851090559 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 24720410 + ... + 24723639.

It is an arithmetic number, because the mean of its divisors is an integer number (6674946750).

Almost surely, 2^79852139135 is an apocalyptic number.

79852139135 is a deficient number, since it is larger than the sum of its proper divisors (26947008865).

79852139135 is a wasteful number, since it uses less digits than its factorization.

79852139135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49444090.

The product of its digits is 2041200, while the sum is 53.

The spelling of 79852139135 in words is "seventy-nine billion, eight hundred fifty-two million, one hundred thirty-nine thousand, one hundred thirty-five".