19818614063 has 8 divisors (see below), whose sum is σ = 19861558560. Its totient is φ = 19775716960.

The previous prime is 19818614051. The next prime is 19818614111. The reversal of 19818614063 is 36041681891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 19818614063 - 2²⁰ = 19817565487 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19818613999 and 19818614017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19818614663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 899606 + ... + 921372.

It is an arithmetic number, because the mean of its divisors is an integer number (2482694820).

Almost surely, 2^19818614063 is an apocalyptic number.

19818614063 is a deficient number, since it is larger than the sum of its proper divisors (42944497).

19818614063 is a wasteful number, since it uses less digits than its factorization.

19818614063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23697.

The product of its (nonzero) digits is 248832, while the sum is 47.

The spelling of 19818614063 in words is "nineteen billion, eight hundred eighteen million, six hundred fourteen thousand, sixty-three".