19014227428917 has 48 divisors (see below), whose sum is σ = 29694351825600. Its totient is φ = 10790776910592.

The previous prime is 19014227428913. The next prime is 19014227428949. The reversal of 19014227428917 is 71982472241091.

It is not a de Polignac number, because 19014227428917 - 2² = 19014227428913 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19014227428913) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11740209 + ... + 13261257.

It is an arithmetic number, because the mean of its divisors is an integer number (618632329700).

Almost surely, 2^{19014227428917} is an apocalyptic number.

It is an amenable number.

19014227428917 is a deficient number, since it is larger than the sum of its proper divisors (10680124396683).

19014227428917 is a wasteful number, since it uses less digits than its factorization.

19014227428917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1521650 (or 1521643 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 57.

It can be divided in two parts, 1901422 and 7428917, that added together give a palindrome (9330339).

The spelling of 19014227428917 in words is "nineteen trillion, fourteen billion, two hundred twenty-seven million, four hundred twenty-eight thousand, nine hundred seventeen".