19112641742208 has 256 divisors, whose sum is σ = 58831863552000. Its totient is φ = 5384574074880.

The previous prime is 19112641742149. The next prime is 19112641742209. The reversal of 19112641742208 is 80224714621191.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19112641742209) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 163240168 + ... + 163357208.

It is an arithmetic number, because the mean of its divisors is an integer number (229811967000).

Almost surely, 2^{19112641742208} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19112641742208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29415931776000).

19112641742208 is an abundant number, since it is smaller than the sum of its proper divisors (39719221809792).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19112641742208 is a wasteful number, since it uses less digits than its factorization.

19112641742208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117913 (or 117901 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 48.

The spelling of 19112641742208 in words is "nineteen trillion, one hundred twelve billion, six hundred forty-one million, seven hundred forty-two thousand, two hundred eight".