19020919209019 has 64 divisors (see below), whose sum is σ = 24753415680000. Its totient is φ = 14193296409600.

The previous prime is 19020919208953. The next prime is 19020919209023. The reversal of 19020919209019 is 91090291902091.

It is not a de Polignac number, because 19020919209019 - 2⁹ = 19020919208507 is a prime.

It is a super-2 number, since 2×19020919209019² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (19020919209619) 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 63 ways as a sum of consecutive naturals, for example, 1921105969 + ... + 1921115869.

It is an arithmetic number, because the mean of its divisors is an integer number (386772120000).

Almost surely, 2^{19020919209019} is an apocalyptic number.

19020919209019 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

19020919209019 is a deficient number, since it is larger than the sum of its proper divisors (5732496470981).

19020919209019 is a wasteful number, since it uses less digits than its factorization.

19020919209019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14828.

The product of its (nonzero) digits is 236196, while the sum is 52.

The spelling of 19020919209019 in words is "nineteen trillion, twenty billion, nine hundred nineteen million, two hundred nine thousand, nineteen".