19679428619559 has 6 divisors (see below), whose sum is σ = 28425841339376. Its totient is φ = 13119619079700.

The previous prime is 19679428619453. The next prime is 19679428619561. The reversal of 19679428619559 is 95591682497691.

19679428619559 is a `hidden beast` number, since 1 + 9 + 6 + 7 + 9 + 42 + 8 + 6 + 19 + 559 = 666.

It is not a de Polignac number, because 19679428619559 - 2⁹ = 19679428619047 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 (19679428619569) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1093301589967 + ... + 1093301589984.

Almost surely, 2^{19679428619559} is an apocalyptic number.

19679428619559 is a deficient number, since it is larger than the sum of its proper divisors (8746412719817).

19679428619559 is a wasteful number, since it uses less digits than its factorization.

19679428619559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2186603179957 (or 2186603179954 counting only the distinct ones).

The product of its digits is 2645395200, while the sum is 81.

The spelling of 19679428619559 in words is "nineteen trillion, six hundred seventy-nine billion, four hundred twenty-eight million, six hundred nineteen thousand, five hundred fifty-nine".