79839490195 has 8 divisors (see below), whose sum is σ = 96303800736. Its totient is φ = 63540650496.

The previous prime is 79839490153. The next prime is 79839490223. The reversal of 79839490195 is 59109493897.

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 79839490195 - 2⁹ = 79839489683 is a prime.

It is a super-2 number, since 2×79839490195² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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, 41366647 + ... + 41368576.

It is an arithmetic number, because the mean of its divisors is an integer number (12037975092).

Almost surely, 2^79839490195 is an apocalyptic number.

79839490195 is a deficient number, since it is larger than the sum of its proper divisors (16464310541).

79839490195 is a wasteful number, since it uses less digits than its factorization.

79839490195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82735421.

The product of its (nonzero) digits is 22044960, while the sum is 64.

The spelling of 79839490195 in words is "seventy-nine billion, eight hundred thirty-nine million, four hundred ninety thousand, one hundred ninety-five".