19629947016 has 48 divisors (see below), whose sum is σ = 53179280700. Its totient is φ = 6541489152.

The previous prime is 19629946993. The next prime is 19629947021. The reversal of 19629947016 is 61074992691.

It is a happy number.

19629947016 is a `hidden beast` number, since 1 + 9 + 629 + 9 + 4 + 7 + 0 + 1 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 19528944516 + 101002500 = 139746^2 + 10050^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 235200 + ... + 307536.

Almost surely, 2^19629947016 is an apocalyptic number.

It is an amenable number.

19629947016 is an abundant number, since it is smaller than the sum of its proper divisors (33549333684).

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

19629947016 is a wasteful number, since it uses less digits than its factorization.

19629947016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76118 (or 76111 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 54.

The spelling of 19629947016 in words is "nineteen billion, six hundred twenty-nine million, nine hundred forty-seven thousand, sixteen".