63189646899 has 8 divisors (see below), whose sum is σ = 84309300432. Its totient is φ = 42098212320.

The previous prime is 63189646787. The next prime is 63189646907. The reversal of 63189646899 is 99864698136.

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

It is not a de Polignac number, because 63189646899 - 2¹⁶ = 63189581363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63189646199) 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, 7049512 + ... + 7058469.

It is an arithmetic number, because the mean of its divisors is an integer number (10538662554).

Almost surely, 2^63189646899 is an apocalyptic number.

63189646899 is a deficient number, since it is larger than the sum of its proper divisors (21119653533).

63189646899 is a wasteful number, since it uses less digits than its factorization.

63189646899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14109477.

The product of its digits is 120932352, while the sum is 69.

The spelling of 63189646899 in words is "sixty-three billion, one hundred eighty-nine million, six hundred forty-six thousand, eight hundred ninety-nine".