19385511193097 has 4 divisors (see below), whose sum is σ = 22154869934976. Its totient is φ = 16616152451220.

The previous prime is 19385511193091. The next prime is 19385511193109. The reversal of 19385511193097 is 79039111558391.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 19385511193097 - 2³² = 19381216225801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19385511193091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1384679370929 + ... + 1384679370942.

It is an arithmetic number, because the mean of its divisors is an integer number (5538717483744).

Almost surely, 2^{19385511193097} is an apocalyptic number.

It is an amenable number.

19385511193097 is a deficient number, since it is larger than the sum of its proper divisors (2769358741879).

19385511193097 is an equidigital number, since it uses as much as digits as its factorization.

19385511193097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2769358741878.

The product of its (nonzero) digits is 9185400, while the sum is 62.

The spelling of 19385511193097 in words is "nineteen trillion, three hundred eighty-five billion, five hundred eleven million, one hundred ninety-three thousand, ninety-seven".