19968849063 has 24 divisors (see below), whose sum is σ = 29743653888. Its totient is φ = 12902793552.

The previous prime is 19968848981. The next prime is 19968849079. The reversal of 19968849063 is 36094886991.

It is a happy number.

19968849063 is a `hidden beast` number, since 1 + 9 + 9 + 6 + 88 + 490 + 63 = 666.

It is not a de Polignac number, because 19968849063 - 2¹⁸ = 19968586919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19968849863) 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, 185595 + ... + 272732.

It is an arithmetic number, because the mean of its divisors is an integer number (1239318912).

Almost surely, 2^19968849063 is an apocalyptic number.

19968849063 is a deficient number, since it is larger than the sum of its proper divisors (9774804825).

19968849063 is a wasteful number, since it uses less digits than its factorization.

19968849063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458483 (or 458480 counting only the distinct ones).

The product of its (nonzero) digits is 20155392, while the sum is 63.

The spelling of 19968849063 in words is "nineteen billion, nine hundred sixty-eight million, eight hundred forty-nine thousand, sixty-three".