19752010866 has 160 divisors (see below), whose sum is σ = 51772976640. Its totient is φ = 5512126464.

The previous prime is 19752010841. The next prime is 19752010951. The reversal of 19752010866 is 66801025791.

19752010866 is a `hidden beast` number, since 19 + 7 + 520 + 108 + 6 + 6 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 8688706 + ... + 8690978.

It is an arithmetic number, because the mean of its divisors is an integer number (323581104).

Almost surely, 2^19752010866 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19752010866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25886488320).

19752010866 is an abundant number, since it is smaller than the sum of its proper divisors (32020965774).

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

19752010866 is a wasteful number, since it uses less digits than its factorization.

19752010866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2470 (or 2461 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The spelling of 19752010866 in words is "nineteen billion, seven hundred fifty-two million, ten thousand, eight hundred sixty-six".