19985850270720 has 528 divisors, whose sum is σ = 69668228148480. Its totient is φ = 5297495605248.

The previous prime is 19985850270713. The next prime is 19985850270731. The reversal of 19985850270720 is 2707205858991.

19985850270720 is a `hidden beast` number, since 1 + 9 + 9 + 8 + 58 + 502 + 7 + 0 + 72 + 0 = 666.

It is a super-2 number, since 2×19985850270720² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7521959632 + ... + 7521962288.

Almost surely, 2^{19985850270720} is an apocalyptic number.

19985850270720 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 19985850270720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34834114074240).

19985850270720 is an abundant number, since it is smaller than the sum of its proper divisors (49682377877760).

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

19985850270720 is a wasteful number, since it uses less digits than its factorization.

19985850270720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3610 (or 3589 counting only the distinct ones).

The product of its (nonzero) digits is 25401600, while the sum is 63.

The spelling of 19985850270720 in words is "nineteen trillion, nine hundred eighty-five billion, eight hundred fifty million, two hundred seventy thousand, seven hundred twenty".