19612285056 has 768 divisors, whose sum is σ = 74226297600. Its totient is φ = 5046312960.

The previous prime is 19612285031. The next prime is 19612285073. The reversal of 19612285056 is 65058221691.

19612285056 is a `hidden beast` number, since 1 + 9 + 612 + 28 + 5 + 0 + 5 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 478348396 + ... + 478348436.

It is an arithmetic number, because the mean of its divisors is an integer number (96648825).

Almost surely, 2^19612285056 is an apocalyptic number.

19612285056 is a gapful number since it is divisible by the number (16) 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 19612285056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37113148800).

19612285056 is an abundant number, since it is smaller than the sum of its proper divisors (54614012544).

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

19612285056 is an frugal number, since it uses more digits than its factorization.

19612285056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116 (or 66 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The spelling of 19612285056 in words is "nineteen billion, six hundred twelve million, two hundred eighty-five thousand, fifty-six".