79699195439 has 8 divisors (see below), whose sum is σ = 85817679120. Its totient is φ = 73739633536.

The previous prime is 79699195399. The next prime is 79699195447. The reversal of 79699195439 is 93459199697.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 79699195439 - 2²⁴ = 79682418223 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 (79699195339) 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 7 ways as a sum of consecutive naturals, for example, 39729404 + ... + 39731409.

It is an arithmetic number, because the mean of its divisors is an integer number (10727209890).

Almost surely, 2^79699195439 is an apocalyptic number.

79699195439 is a deficient number, since it is larger than the sum of its proper divisors (6118483681).

79699195439 is a wasteful number, since it uses less digits than its factorization.

79699195439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79460889.

The product of its digits is 148803480, while the sum is 71.

The spelling of 79699195439 in words is "seventy-nine billion, six hundred ninety-nine million, one hundred ninety-five thousand, four hundred thirty-nine".