19863283968 has 180 divisors, whose sum is σ = 64613889648. Its totient is φ = 6019107840.

The previous prime is 19863283949. The next prime is 19863284003. The reversal of 19863283968 is 86938236891.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 184555 + ... + 271637.

Almost surely, 2^19863283968 is an apocalyptic number.

19863283968 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 19863283968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32306944824).

19863283968 is an abundant number, since it is smaller than the sum of its proper divisors (44750605680).

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

19863283968 is an equidigital number, since it uses as much as digits as its factorization.

19863283968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87122 (or 87099 counting only the distinct ones).

The product of its digits is 26873856, while the sum is 63.

The spelling of 19863283968 in words is "nineteen billion, eight hundred sixty-three million, two hundred eighty-three thousand, nine hundred sixty-eight".