19684260960 has 384 divisors, whose sum is σ = 78781538304. Its totient is φ = 4018913280.

The previous prime is 19684260943. The next prime is 19684260997. The reversal of 19684260960 is 6906248691.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1346812 + ... + 1361348.

It is an arithmetic number, because the mean of its divisors is an integer number (205160256).

Almost surely, 2^19684260960 is an apocalyptic number.

19684260960 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 19684260960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39390769152).

19684260960 is an abundant number, since it is smaller than the sum of its proper divisors (59097277344).

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

19684260960 is a wasteful number, since it uses less digits than its factorization.

19684260960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14606 (or 14598 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 51.

The spelling of 19684260960 in words is "nineteen billion, six hundred eighty-four million, two hundred sixty thousand, nine hundred sixty".