63799181109 has 12 divisors (see below), whose sum is σ = 93320884800. Its totient is φ = 41994397224.

The previous prime is 63799181107. The next prime is 63799181123. The reversal of 63799181109 is 90118199736.

It is a happy number.

63799181109 is a `hidden beast` number, since 6 + 379 + 91 + 81 + 109 = 666.

It is not a de Polignac number, because 63799181109 - 2¹ = 63799181107 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63799181107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44865099 + ... + 44866520.

It is an arithmetic number, because the mean of its divisors is an integer number (7776740400).

Almost surely, 2^63799181109 is an apocalyptic number.

It is an amenable number.

63799181109 is a deficient number, since it is larger than the sum of its proper divisors (29521703691).

63799181109 is a wasteful number, since it uses less digits than its factorization.

63799181109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89731704 (or 89731701 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 54.

The spelling of 63799181109 in words is "sixty-three billion, seven hundred ninety-nine million, one hundred eighty-one thousand, one hundred nine".