8194219661760 has 896 divisors, whose sum is σ = 31989574425600. Its totient is φ = 1751258234880.

The previous prime is 8194219661689. The next prime is 8194219661801. The reversal of 8194219661760 is 671669124918.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a junction number, because it is equal to n+sod(n) for n = 8194219661694 and 8194219661703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 303554824 + ... + 303581816.

Almost surely, 2^{8194219661760} is an apocalyptic number.

8194219661760 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8194219661760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15994787212800).

8194219661760 is an abundant number, since it is smaller than the sum of its proper divisors (23795354763840).

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

8194219661760 is a wasteful number, since it uses less digits than its factorization.

8194219661760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27149 (or 27139 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 60.

The spelling of 8194219661760 in words is "eight trillion, one hundred ninety-four billion, two hundred nineteen million, six hundred sixty-one thousand, seven hundred sixty".