79979950173 has 8 divisors (see below), whose sum is σ = 106956373888. Its totient is φ = 53161746624.

The previous prime is 79979950093. The next prime is 79979950217. The reversal of 79979950173 is 37105997997.

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

It is not a de Polignac number, because 79979950173 - 2²⁴ = 79963172957 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 (79979950073) 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, 39553861 + ... + 39555882.

It is an arithmetic number, because the mean of its divisors is an integer number (13369546736).

Almost surely, 2^79979950173 is an apocalyptic number.

It is an amenable number.

79979950173 is a deficient number, since it is larger than the sum of its proper divisors (26976423715).

79979950173 is a wasteful number, since it uses less digits than its factorization.

79979950173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79110083.

The product of its (nonzero) digits is 33756345, while the sum is 66.

The spelling of 79979950173 in words is "seventy-nine billion, nine hundred seventy-nine million, nine hundred fifty thousand, one hundred seventy-three".