663013968489 has 32 divisors (see below), whose sum is σ = 985025408640. Its totient is φ = 440758967616.

The previous prime is 663013968481. The next prime is 663013968521. The reversal of 663013968489 is 984869310366.

663013968489 is a `hidden beast` number, since 6 + 63 + 0 + 1 + 3 + 96 + 8 + 489 = 666.

It is not a de Polignac number, because 663013968489 - 2³ = 663013968481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (663013968481) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13812759 + ... + 13860675.

It is an arithmetic number, because the mean of its divisors is an integer number (30782044020).

Almost surely, 2^663013968489 is an apocalyptic number.

It is an amenable number.

663013968489 is a deficient number, since it is larger than the sum of its proper divisors (322011440151).

663013968489 is a wasteful number, since it uses less digits than its factorization.

663013968489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49366 (or 49360 counting only the distinct ones).

The product of its (nonzero) digits is 40310784, while the sum is 63.

The spelling of 663013968489 in words is "six hundred sixty-three billion, thirteen million, nine hundred sixty-eight thousand, four hundred eighty-nine".