19794635801600 has 528 divisors, whose sum is σ = 57364892447616. Its totient is φ = 6698926080000.

The previous prime is 19794635801533. The next prime is 19794635801671. The reversal of 19794635801600 is 610853649791.

It is a self number, because there is not a number n which added to its sum of digits gives 19794635801600.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 239600300 + ... + 239682900.

Almost surely, 2^{19794635801600} is an apocalyptic number.

19794635801600 is a gapful number since it is divisible by the number (10) 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 19794635801600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28682446223808).

19794635801600 is an abundant number, since it is smaller than the sum of its proper divisors (37570256646016).

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

19794635801600 is a wasteful number, since it uses less digits than its factorization.

19794635801600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82702 (or 82679 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 59.

The spelling of 19794635801600 in words is "nineteen trillion, seven hundred ninety-four billion, six hundred thirty-five million, eight hundred one thousand, six hundred".