19031902123416 has 768 divisors, whose sum is σ = 61837322112000. Its totient is φ = 4875010043904.

The previous prime is 19031902123387. The next prime is 19031902123417. The reversal of 19031902123416 is 61432120913091.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19031902123417) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 6804396930 + ... + 6804399726.

It is an arithmetic number, because the mean of its divisors is an integer number (80517346500).

Almost surely, 2^{19031902123416} 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 19031902123416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30918661056000).

19031902123416 is an abundant number, since it is smaller than the sum of its proper divisors (42805419988584).

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

19031902123416 is a wasteful number, since it uses less digits than its factorization.

19031902123416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2993 (or 2962 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 42.

The spelling of 19031902123416 in words is "nineteen trillion, thirty-one billion, nine hundred two million, one hundred twenty-three thousand, four hundred sixteen".