19091090920147 has 2 divisors, whose sum is σ = 19091090920148. Its totient is φ = 19091090920146.

The previous prime is 19091090920133. The next prime is 19091090920283. The reversal of 19091090920147 is 74102909019091.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 19091090920147 - 2³⁵ = 19056731181779 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19091090920094 and 19091090920103.

It is not a weakly prime, because it can be changed into another prime (19091090920117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9545545460073 + 9545545460074.

It is an arithmetic number, because the mean of its divisors is an integer number (9545545460074).

Almost surely, 2^{19091090920147} is an apocalyptic number.

19091090920147 is a deficient number, since it is larger than the sum of its proper divisors (1).

19091090920147 is an equidigital number, since it uses as much as digits as its factorization.

19091090920147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 367416, while the sum is 52.

The spelling of 19091090920147 in words is "nineteen trillion, ninety-one billion, ninety million, nine hundred twenty thousand, one hundred forty-seven".