19763217216 has 168 divisors, whose sum is σ = 60642260224. Its totient is φ = 6375075840.

The previous prime is 19763217209. The next prime is 19763217217. The reversal of 19763217216 is 61271236791.

19763217216 is a `hidden beast` number, since 1 + 9 + 7 + 632 + 1 + 7 + 2 + 1 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19763217217) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 461616 + ... + 502608.

Almost surely, 2^19763217216 is an apocalyptic number.

19763217216 is a gapful number since it is divisible by the number (16) 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 19763217216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30321130112).

19763217216 is an abundant number, since it is smaller than the sum of its proper divisors (40879043008).

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

19763217216 is an equidigital number, since it uses as much as digits as its factorization.

19763217216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41051 (or 41029 counting only the distinct ones).

The product of its digits is 190512, while the sum is 45.

The spelling of 19763217216 in words is "nineteen billion, seven hundred sixty-three million, two hundred seventeen thousand, two hundred sixteen".