19679205795167 has 4 divisors (see below), whose sum is σ = 19692439963296. Its totient is φ = 19665971627040.

The previous prime is 19679205795163. The next prime is 19679205795199. The reversal of 19679205795167 is 76159750297691.

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 19679205795167 - 2² = 19679205795163 is a prime.

It is a super-2 number, since 2×19679205795167² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19679205795094 and 19679205795103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19679205795163) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 6617081834 + ... + 6617084807.

It is an arithmetic number, because the mean of its divisors is an integer number (4923109990824).

Almost surely, 2^{19679205795167} is an apocalyptic number.

19679205795167 is a deficient number, since it is larger than the sum of its proper divisors (13234168129).

19679205795167 is a wasteful number, since it uses less digits than its factorization.

19679205795167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13234168128.

The product of its (nonzero) digits is 450084600, while the sum is 74.

The spelling of 19679205795167 in words is "nineteen trillion, six hundred seventy-nine billion, two hundred five million, seven hundred ninety-five thousand, one hundred sixty-seven".