19384020012889 has 12 divisors (see below), whose sum is σ = 22720885905168. Its totient is φ = 16488043189800.

The previous prime is 19384020012853. The next prime is 19384020012919. The reversal of 19384020012889 is 98821002048391.

It is not a de Polignac number, because 19384020012889 - 2²³ = 19384011624281 is a prime.

It is a super-2 number, since 2×19384020012889² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19384020012809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1509887647 + ... + 1509900484.

It is an arithmetic number, because the mean of its divisors is an integer number (1893407158764).

Almost surely, 2^{19384020012889} is an apocalyptic number.

It is an amenable number.

19384020012889 is a deficient number, since it is larger than the sum of its proper divisors (3336865892279).

19384020012889 is a wasteful number, since it uses less digits than its factorization.

19384020012889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3019788276 (or 3019788269 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 55.

The spelling of 19384020012889 in words is "nineteen trillion, three hundred eighty-four billion, twenty million, twelve thousand, eight hundred eighty-nine".