19717352960 has 160 divisors (see below), whose sum is σ = 48102671232. Its totient is φ = 7750287360.

The previous prime is 19717352953. The next prime is 19717352971. The reversal of 19717352960 is 6925371791.

It is a tau number, because it is divible by the number of its divisors (160).

It is a junction number, because it is equal to n+sod(n) for n = 19717352899 and 19717352908.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 67294574 + ... + 67294866.

Almost surely, 2^19717352960 is an apocalyptic number.

19717352960 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 19717352960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24051335616).

19717352960 is an abundant number, since it is smaller than the sum of its proper divisors (28385318272).

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

19717352960 is an equidigital number, since it uses as much as digits as its factorization.

19717352960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684 (or 668 counting only the distinct ones).

The product of its (nonzero) digits is 714420, while the sum is 50.

The spelling of 19717352960 in words is "nineteen billion, seven hundred seventeen million, three hundred fifty-two thousand, nine hundred sixty".