19741688568 has 192 divisors, whose sum is σ = 62270208000. Its totient is φ = 5533871616.

The previous prime is 19741688543. The next prime is 19741688573. The reversal of 19741688568 is 86588614791.

19741688568 is a `hidden beast` number, since 1 + 9 + 7 + 4 + 1 + 68 + 8 + 568 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

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, 6647788 + ... + 6650756.

It is an arithmetic number, because the mean of its divisors is an integer number (324324000).

Almost surely, 2^19741688568 is an apocalyptic number.

19741688568 is a gapful number since it is divisible by the number (18) 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 19741688568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31135104000).

19741688568 is an abundant number, since it is smaller than the sum of its proper divisors (42528519432).

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

19741688568 is a wasteful number, since it uses less digits than its factorization.

19741688568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3234 (or 3227 counting only the distinct ones).

The product of its digits is 23224320, while the sum is 63.

The spelling of 19741688568 in words is "nineteen billion, seven hundred forty-one million, six hundred eighty-eight thousand, five hundred sixty-eight".