19620285120 has 168 divisors, whose sum is σ = 67979568384. Its totient is φ = 5193781248.

The previous prime is 19620285109. The next prime is 19620285173. The reversal of 19620285120 is 2158202691.

19620285120 is a `hidden beast` number, since 1 + 9 + 620 + 2 + 8 + 5 + 1 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 369697 + ... + 419423.

It is an arithmetic number, because the mean of its divisors is an integer number (404640288).

Almost surely, 2^19620285120 is an apocalyptic number.

19620285120 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 19620285120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33989784192).

19620285120 is an abundant number, since it is smaller than the sum of its proper divisors (48359283264).

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

19620285120 is a wasteful number, since it uses less digits than its factorization.

19620285120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49887 (or 49874 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The spelling of 19620285120 in words is "nineteen billion, six hundred twenty million, two hundred eighty-five thousand, one hundred twenty".